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Effect of Alloying Elements on the High-Temperature Yielding Behavior of Multicomponent γ′-L12 Alloys
Description/Abstract:
The exceptional mechanical properties of Ni-based high entropy alloys are due to the presence of ordered L12 (𝛾ʹ) precipitates embedded w...
Keyword:
CALPHAD
,
high-temperature deformation
,
intermetallic compounds
, and
multicomponent alloy
Resource Type:
Article
Author:
Chen-Yuan Wang
,
Sae Matsunaga
,
Yoshiaki Toda
,
Hideyuki Murakami
,
An-Chou Yeh
, and
Yoko Yamabe-Mitarai
Journal:
Materials
Date Uploaded:
21/05/2024
Large anomalous Hall effect in spin fluctuating devil’s staircase
Description/Abstract:
Electrons in metals can show a giant anomalous Hall effect (AHE) when interacting with characteristic spin texture. The AHE has been di...
Keyword:
SrCo6O11
,
anomalous Hall effect
, and
devil's staircase
Resource Type:
Article
Author:
Naoki Abe
,
Yuya Hano
,
Hiroaki Ishizuka
,
Yusuke Kozuka
,
Terumasa Tadano
,
Yoshihiro Tsujimoto
,
Kazunari Yamaura
,
Shintaro Ishiwata
, and
Jun Fujioka
Journal:
npj Quantum Materials
Date Uploaded:
20/05/2024
Crystal Electric Field Level Scheme Behind Giant Magnetocaloric Effect for Hydrogen Liquefaction
Description/Abstract:
The relationship between ΔSM and crystal field parameters derived in this study provides new guidelines for searching for compounds with ...
Keyword:
Magnetocaloric effectg
and
Neutron scattering
Resource Type:
Report
Author:
N. Terada
,
H. Mamiya
,
H. Saito
,
T. Nakajima
,
T. D. Yamamoto
,
K. Terashima
,
H. Takeya
,
O. Sakai
,
S. Itoh
,
Y. Takano
,
M. Hase
, and
H. Kitazawa
Journal:
J-PARC MLF Annual Report 2022
Date Uploaded:
20/05/2024
Ultrahigh Responsivity of Diamond-based Solar-blind Photodetectors Using Hydrogen Plasma Treatment
Description/Abstract:
Diamond-based solar blind ultraviolet (UV) photodetectors (PDs) have attracted extensive attention due to their unique characteristics in...
Keyword:
Diamond
and
photodetector
Resource Type:
Poster
Author:
Keyun Gu
,
Zilong Zhang
,
Guo Chen
,
Liwen Sang
,
Jian Huang
,
Yasuo Koide
, and
Meiyong Liao
Date Uploaded:
16/05/2024
Zero-magnetic-field operation of ordinary-Nernst-effect-based transverse thermoelectric module using embedded permanent magnets
Description/Abstract:
The ordinary Nernst effect enables large transverse thermoelectric conversion in semimetals but its operation requires the application of...
Keyword:
ordinary Nernst effect
,
permanent magnet
, and
transverse thermoelectric conversion
Resource Type:
Article
Author:
Masayuki Murata
,
Takamasa Hirai
,
Takeshi Seki
, and
Ken-ichi Uchida
Journal:
APPLIED PHYSICS LETTERS
Date Uploaded:
15/05/2024
Bulk-edge correspondence in open photonic systems
Description/Abstract:
We study the bulk-edge correspondence in topological photonic crystals with open boundary. If boundary is open, edge states become leaky...
Keyword:
Krein-Friedel-Lloyd formula
,
open boundary
, and
photonic crystal
Resource Type:
Article
Author:
Tetsuyuki Ochiai
Journal:
Waves in Random and Complex Media
Date Uploaded:
14/05/2024
Direct observation of the atomic density fluctuation originating from the first sharp diffraction peak in SiO2 glass
Description/Abstract:
The intermediate-range order of the covalently bonded glasses has been extensively discussed in terms of their diffraction peaks observed...
Keyword:
glass, structure, fluctuation
Resource Type:
Article
Author:
Akihiko Hirata
,
Shuya Sato
,
Motoki Shiga
,
Yohei Onodera
,
Koji Kimoto
, and
Shinji Kohara
Journal:
NPG Asia Materials
Date Uploaded:
14/05/2024
Degenerate spontaneous parametric down-conversion in nonlinear metasurfaces
Description/Abstract:
We propose a simple scheme of degenerate spontaneous parametric down-conversion (SPDC) in nonlinear metasurfaces or photonic crystal slab...
Keyword:
SPDC
,
nonlinear optics
, and
quasi-guided modes
Resource Type:
Article
Author:
Tetsuyuki Ochiai
Journal:
Optics Express
Date Uploaded:
14/05/2024
Enhanced orbital torque efficiency in nonequilibrium Ru50Mo50(0001) alloy epitaxial thin films
Description/Abstract:
Epitaxial thin films of fully nonequilibrium hcp-Ru_50Mo_50(0001) nanoalloys were prepared as a chemically disordered alloy, in which the...
Keyword:
Epitaxial thin films
,
Nonequilibrium
,
Orbital torque
, and
Ru50Mo50(0001)
Resource Type:
Article
Author:
Ke Tang
,
Cong He
,
Zhenchao Wen
,
Hiroaki Sukegawa
,
Tadakatsu Ohkubo
,
Yukio Nozaki
, and
Seiji Mitani
Journal:
APL Materials
Date Uploaded:
13/05/2024
A new class of crystalline X-ray induced photochromic materials assembled from anion-directed folding of a flexible cation
Description/Abstract:
Electron-deficient viologens are widely used as ligands or structure-directing agents (SDAs) to synthesize crystalline X-ray induced phot...
Keyword:
Anion-directed folding
,
Electron-deficient viologens
,
Photochromic
,
Supramolecular
, and
X-ray induced
Resource Type:
Article
Author:
Hong-Jin Liao
,
Zhu Zhuo
,
Qing Li
,
Yoshihito Shiota
,
Jonathan P. Hill
,
Katsuhiko Ariga
,
Zi-Xiu Lu
,
Lu-Yao Liu
,
Zi-Ang Nan
,
Wei Wang
, and
You-Gui Huang
Journal:
Chinese Chemical Letters
Date Uploaded:
13/05/2024
Emitted secondary Electrons: In vacuo plasmon energy gain observation using a Three-Point probe method
Description/Abstract:
A surface plasmon energy gain for emitted secondary electrons (SEs) was recently observed in SE spectroscopy measurements from a tailor-m...
Keyword:
secondary electron
and
surface plasmon energy gain
Resource Type:
Article
Author:
B. Da
,
X. Liu
,
J.M. Gong
,
Z.H. Zhang
,
Z.J. Ding
,
N.T. Cuong
,
J. Hu
,
J.W. Liu
,
Z.S. Gao
,
H.X. Guo
,
H.X. Wang
,
H. Zhang
,
Y. Harada
,
H. Yoshikawa
, and
S. Tanuma
Journal:
APPLIED SURFACE SCIENCE
Date Uploaded:
10/05/2024
Crystal electric field leading to giant magnetocaloric effect for hydrogen liquefaction
Description/Abstract:
In the present review, we focus on showing relationship between giant magnetocaloric effect and crystal electric field effect, by present...
Keyword:
crystal electric field
,
magnetocaloric effect
, and
neutron scattering
Resource Type:
Article
Author:
寺田 典樹
Journal:
KEK ANNUAL REPORT
Date Uploaded:
10/05/2024
Alkyl–π Functional Molecular Gels: Control of Elastic Modulus and Improvement of Electret Performance
Description/Abstract:
We report the development of alkyl–π functional molecular gels (FMGs), in which the addition of a 1 wt% low-molecular-weight gelator can ...
Keyword:
electrets
,
functional molecular liquids
,
low-molecular-weight gelators
,
luminescence
, and
π-gels
Resource Type:
Article
Author:
Akito Tateyama
,
Kazuhiko Nagura
,
Masamichi Yamanaka
, and
Takashi Nakanishi
Journal:
Angewandte Chemie International Edition
Date Uploaded:
10/05/2024
Mode Ⅰ–Governed fracture energy and maximum normal traction of a CFRP rod
Description/Abstract:
This study develops a double cantilever beam test by using a specific fixture for measuring the representative critical energy release ra...
Keyword:
Carbon fiber reinforced Polymer (CFRP)
,
Double Cantilever Beam (DCB)
, and
Rod
Resource Type:
Article
Author:
Yuta Tobata
,
Kimiyoshi Naito
, and
Jonathon Tanks
Journal:
Journal of Composite Materials
Date Uploaded:
09/05/2024
Molecular machines working at interfaces: physics, chemistry, evolution and nanoarchitectonics
Description/Abstract:
This review summarizes the trends of molecular machines that continue to evolve under the concept of nanoarchitectonics in the interfacia...
Keyword:
Molecular machine
,
interface
, and
nanoarchitectonics
Resource Type:
Article
Author:
Katsuhiko Ariga
,
Jingwen Song
, and
Kohsaku Kawakami
Journal:
Physical Chemistry Chemical Physics
Date Uploaded:
09/05/2024
Stroboscopic time-of-flight neutron diffraction in long pulsed magnetic fields
Description/Abstract:
We present proof-of-principle experiments of stroboscopic time-of-flight (TOF) neutron diffraction in long pulsed magnetic fields. By uti...
Keyword:
frustration
,
neutron diffraction
, and
pulsed magnetic field
Resource Type:
Article
Author:
Taro Nakajima
,
Masao Watanabe
,
Yasuhiro Inamura
,
Kazuki Matsui
,
Tomoki Kanda
,
Tetsuya Nomoto
,
Kazuki Ohishi
,
Yukihiko Kawamura
,
Hiraku Saito
,
Hiromu Tamatsukuri
,
Noriki Terada
, and
Yoshimitsu Kohama
Journal:
Physical Review Research
Date Uploaded:
09/05/2024
Impacts of vacancy complexes on the room-temperature photoluminescence lifetime of state-of-the-art GaN substrates, epitaxial layers, and Mg-implanted layers
Description/Abstract:
For rooting the development of GaN-based optoelectronic devices, understanding the roles of midgap recombination centers (MGRCs), namely ...
Keyword:
GaN
Resource Type:
Article
Author:
Shigefusa F. Chichibu
,
Kohei Shima
,
Akira Uedono
,
Shoji Ishibashi
,
Hiroko Iguchi
,
Tetsuo Narita
,
Keita Kataoka
,
Ryo Tanaka
,
Shinya Takashima
,
Katsunori Ueno
,
Masaharu Edo
,
Hirotaka Watanabe
,
Atsushi Tanaka
,
Yoshio Honda
,
Jun Suda
,
Hiroshi Amano
,
Tetsu Kachi
,
Toshihide Nabatame
,
Yoshihiro Irokawa
, and
Yasuo Koide
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
09/05/2024
The Energy Level Alignment at the Buffer/Cu(In,Ga)Se<sub>2</sub> Thin‐Film Solar Cell Interface for CdS and GaO<sub>x</sub>
Description/Abstract:
The energy level alignment at the GaOx/CIGSe and CdS/CIGSe interfaces are compared by means of direct and inverse photoemission. For the ...
Keyword:
CdS
,
Cu(In,Ga)Se2
,
GaOx
,
energy level alignment
,
hard and soft X-ray photoelectron spectroscopy
,
interface
, and
thin-film solar cell
Resource Type:
Article
Author:
Donald Valenta
,
Hasan Arif Yetkin
,
Tim Kodalle
,
Jakob Bombsch
,
Raul Garcia‐Diez
,
Claudia Hartmann
,
Shigenori Ueda
,
Roberto Félix
,
Johannes Frisch
,
Lucas Bodenstein‐Dresler
,
Regan G. Wilks
,
Christian A. Kaufmann
, and
Marcus Bär
Journal:
Advanced Materials Interfaces
Date Uploaded:
09/05/2024
Face-on-oriented formation of bis(diimino)metal coordination nanosheets on gold electrodes by electrochemical oxidation
Description/Abstract:
Bis(diimino)metal complex nanosheets composed of metal ions and hexaaminobenzene ligands (MHABs) are fascinating two-dimensional material...
Keyword:
Bis(diimino)metal complex
,
coordination nanosheets
, and
electrochemical oxidation
Resource Type:
Article
Author:
Hiroaki Maeda
,
Kenji Takada
,
Naoya Fukui
,
Hiroyasu Masunaga
,
Sono Sasaki
,
Kazuhito Tsukagoshi
, and
Hiroshi Nishihara
Journal:
New Journal of Chemistry
Date Uploaded:
08/05/2024
Metal–organic framework adhesives with exceptionally high heat resistance
Description/Abstract:
We synthesized high-heat-resistant adhesives based on metal – organic frameworks owing to their high decomposition temperature and the ab...
Keyword:
Metal-organic framework
,
heat resistance
, and
structural adhesive
Resource Type:
Article
Author:
Izuru Miyazaki
,
Yumi Masuoka
,
Akitoshi Suzumura
,
Shinya Moribe
,
Hisaaki Takao
, and
Mitsutaro Umehara
Journal:
Science and Technology of Advanced Materials
Date Uploaded:
08/05/2024
Iodonium-based pro-adhesive layers for robust adhesion of PEDOT:PSS to surfaces
Description/Abstract:
Electrochemical grafting of organic molecules to metal surfaces has been well-known as an efficient tool enabling tailored modification o...
Keyword:
Adhesion
,
PEDOT:PSS
,
charge storage capacity
,
charge transfer
,
electrografting
, and
iodonium salts
Resource Type:
Article
Author:
Szymon Smołka
,
Taral Patel
,
Sandra Pluczyk-Małek
,
Roman Turczyn
, and
Katarzyna Krukiewicz
Journal:
Science and Technology of Advanced Materials
Date Uploaded:
08/05/2024
Alkyl anchor–modified artificial viral capsid budding outside-to-inside and inside-to-outside giant vesicles
Description/Abstract:
The budding of human immunodeficiency virus from an infected host cell is induced by the modification of structural proteins bearing long...
Keyword:
Artificial viral capsid
,
alkyl anchor
,
budding
,
giant vesicle
,
self-assembly
, and
β-annulus peptide
Resource Type:
Article
Author:
Kazunori Matsuura
,
Miu Hirahara
,
Kentarou Sakamoto
, and
Hiroshi Inaba
Journal:
Science and Technology of Advanced Materials
Date Uploaded:
08/05/2024
Robust Preparation of Sub‐20‐nm‐Thin Lamellae for Aberration‐Corrected Electron Microscopy
Description/Abstract:
Aberration-corrected scanning transmission electron microscopy (STEM) has been advancing resolution, sensitivity, and microanalysis due t...
Keyword:
Automation
,
FIB
, and
TEM
Resource Type:
Article
Author:
Hideyo Tsurusawa
,
Jun Uzuhashi
,
Yusuke Kozuka
,
Koji Kimoto
, and
Tadakatsu Ohkubo
Journal:
Small Methods
Date Uploaded:
02/05/2024
Two displacive ferroelectric phase transitions in multiferroic quadruple perovskite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Bi</mml:mi><mml:msub><mml:mi mathvariant="normal">Mn</mml:mi><mml:mn>7</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>12</mml:mn></mml:msub></mml:mrow></mml:math>
Description/Abstract:
We report on the microwave, terahertz (THz), infrared and Raman spectroscopic studies of BiMn7O12 ceramics, shedding more light into the ...
Keyword:
BiMn7O12
,
ferroelectric transition
,
multiferroic
, and
perovskites
Resource Type:
Article
Author:
A. Maia
,
M. Kempa
,
V. Bovtun
,
R. Vilarinho
,
C. Kadlec
,
J. Agostinho Moreira
,
A. A. Belik
,
P. Proschek
, and
S. Kamba
Journal:
Physical Review B
Date Uploaded:
02/05/2024
Polarity Does Not Matter: Molecular Weight Reverses the Photoisomerization-Induced Phase Separation of an Azobenzene-Bearing Polymer
Description/Abstract:
The non-canonical photoisomerization-induced phase separation of an azobenzene-bearing polymer is found. The polymer composed of acrylate...
Keyword:
azobenzene
,
hydrophobic effect
,
isomerization
,
liquid-liquid phase separation
, and
molecular weight
Resource Type:
Article
Author:
本間 健太
,
チャン チン シュエン
,
山本 翔太
,
上木 岳士
, and
中西 淳
Journal:
MACROMOLECULAR RAPID COMMUNICATIONS
Date Uploaded:
01/05/2024
Peculiar microstructural evolution and hardness variation depending on laser powder bed fusion-manufacturing condition in Ti–6Al–2Sn–4Zr–6Mo
Description/Abstract:
This study comprehensively evaluates the phases, microstructure evolution, and hardness performance of Ti-6Al-2Sn-4Zr-6Mo wt.% parts proc...
Keyword:
LPBF
,
Metastable phase
,
Polycrystaline microstructure
,
Rapid cooling
,
Thermal history
, and
Ti6246
Resource Type:
Article
Author:
Prince Valentine Cobbinah
,
Sae Matsunaga
,
Yoshiaki Toda
,
Ryosuke Ozasa
,
Masayuki Okugawa
,
Takuya Ishimoto
,
Yuheng Liu
,
Yuichiro Koizumi
,
Pan Wang
,
Takayoshi Nakano
, and
Yoko Yamabe-Mitarai
Journal:
Smart Materials in Manufacturing
Date Uploaded:
30/04/2024
Surface charge-dependent cytokine production using near-infrared emitting silicon quantum dots
Description/Abstract:
This article outlines the preparation of three distinct surface-charged SiQDs-F127 (+0.03, + 9.13, -7.05 mV), varying from negative to po...
Keyword:
Bioimaging
,
Colloidal Quantum dots
,
CpG oligodeoxynucleotides
,
Immune-stimulation
,
Pluronic F127
, and
Silicon nanocrystals
Resource Type:
Article
Author:
Shanmugavel Chinnathambi
,
Naoto Shirahata
,
Pooria Lesani
,
Vaijayanthi Thangavel
, and
Ganesh N. Pandian
Journal:
Scientific Reports
Date Uploaded:
30/04/2024
Rational ligand design for enhanced carrier mobility in self-powered SWIR photodiodes based on colloidal InSb quantum dots
Description/Abstract:
Solution-processed colloidal III-V semiconductor quantum dot photodiodes (QPDs) have potential applications in SWIR imaging due to their ...
Keyword:
Colloidal Quantum dots
,
Indium Antimonide
,
Nanocrystals
,
Near-infrared photodetector
,
Photodiodes
, and
Short wavelength infrared photodetector
Resource Type:
Article
Author:
Subhashri Chatterjee
,
Kazuhiro Nemoto
,
Hong-Tao Sun
, and
Naoto Shirahata
Journal:
Nanoscale Horizons
Date Uploaded:
30/04/2024
Influence of the Charge Ratio of Guanine-Quadruplex Structure-Based CpG Oligodeoxynucleotides and Cationic DOTAP Liposomes on Cytokine Induction Profiles
Description/Abstract:
Cationic liposomes, specifically 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) liposomes, serve as successful carriers for guanine-qua...
Keyword:
CpG oligodeoxynucleotides
,
DNA delivery
,
cationic liposomes
,
guanine quadruplex
,
immunotherapy
,
liposome
, and
vaccine
Resource Type:
Article
Author:
Nguyen Bui Thao Le
,
Anh Thi Tram Tu
,
Dandan Zhao
,
Chiaki Yoshikawa
,
Kohsaku Kawakami
,
Yoshihisa Kaizuka
, and
Tomohiko Yamazaki
Journal:
Biomolecules
Date Uploaded:
30/04/2024
Study of device characteristics of intrinsic Josephson junction terahertz emitters related to annealing conditions of the crystals
Description/Abstract:
We fabricated terahertz (THz) wave emitters from high-temperature superconductor Bi2 Sr2 CaCu2 O8þδ (Bi2212) single crystals annealed und...
Keyword:
Josephson junction
,
annealing condition
,
high-temperature superconductor
, and
terahertz emitter
Resource Type:
Article
Author:
S. Nakagawa
,
T. Shizu
,
T. Imai
,
M. Nakayama
,
J. Kim
,
H. Minami
,
K. Kadowaki
,
M. Tsujimoto
,
H. Nakao
,
H. Eisaki
,
S. Ishida
,
T. Mochiku
,
Y. Hasegawa
, and
T. Kashiwagi
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
26/04/2024
Cu2O single crystal growth using CuCl flux and bandgap evaluation
Description/Abstract:
High-quality Cu2O single crystals were grown in CuCl flux, utilizing an Al2O3 or MgO crucible and a slow-cooling technique. The resultant...
Keyword:
Bandgap
,
Cu2O
,
Flux method
, and
Single crystal
Resource Type:
Article
Author:
Fumio Kawamura
,
Takehiko Nagai
, and
Hitoshi Tampo
Journal:
Materials Letters
Date Uploaded:
25/04/2024
Date Modified:
25/04/2024
On‐Surface Synthesis of Silole and Disila‐Cyclooctene Derivatives
Description/Abstract:
The incorporation of Si atoms into organic compounds significantly increases a variety of functionality, facilitating further application...
Keyword:
density functional theory
,
nanoribbon structures
,
on-surface synthesis
,
scanning tunneling microscopy/spectroscopy
, and
sila-cyclic rings
Resource Type:
Article
Author:
Kewei Sun
,
Lauri Kurki
,
Orlando J. Silveira
,
Tomohiko Nishiuchi
,
Takashi Kubo
,
Adam S. Foster
, and
Shigeki Kawai
Journal:
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Date Uploaded:
25/04/2024
Near‐Field Photodetection in Direction Tunable Surface Plasmon Polaritons Waveguides Embedded with Graphene
Description/Abstract:
We report circular polarization dependent plasmonic waveguide with graphene in the visible range.
Keyword:
2D material
,
photodetection
,
plasmonic waveguide
, and
unidirectional propagation
Resource Type:
Article
Author:
Chia‐Hung Wu
,
Chih‐Jen Ku
,
Min‐Wen Yu
,
Jhen‐Hong Yang
,
Pei‐Yuan Wu
,
Chen‐Bin Huang
,
Tien‐Chang Lu
,
Jer‐Shing Huang
,
Satoshi Ishii
, and
Kuo‐Ping Chen
Journal:
Advanced Science
Date Uploaded:
25/04/2024
Terahertz electric-field-driven dynamical multiferroicity in SrTiO3
Description/Abstract:
The emergence of collective order in matter is among the most fundamental and intriguing phenomena in physics. In recent years, the ultra...
Keyword:
SrTiO3
,
dynamical multiferroicity
,
magnetism
, and
phonon
Resource Type:
Article
Author:
M. Basini
,
M. Pancaldi
,
B. Wehinger
,
M. Udina
,
V. Unikandanunni
,
T. Tadano
,
M. C. Hoffmann
,
A. V. Balatsky
, and
S. Bonetti
Journal:
Nature
Date Uploaded:
24/04/2024
Development of a Photoemission Microscopy Apparatus Using a Vacuum Ultraviolet Laser
Description/Abstract:
We report on a photoemission microscopy apparatus using a 10.9-eV laser developed at National Institute for Materials Science (NIMS). Our...
Keyword:
Photoemission spectroscopy, Momentum microscope, Ultraviolet laser, Electronic property
Resource Type:
Article
Author:
Koichiro Yaji
and
Shunsuke Tsuda
Journal:
e-Journal of Surface Science and Nanotechnology
Date Uploaded:
23/04/2024
Comparative Studies on [B(HFIP)<sub>4</sub>]-Based Electrolytes with Mono- and Divalent Cations
Description/Abstract:
We conducted comprehensive comparative studies on the representative WCA-based electrolytes incorporating tetrakis(hexafluoro-iso-propoxy...
Keyword:
borate
,
divalent metal
,
electrolyte
,
monovalent metal
, and
stability
Resource Type:
Article
Author:
Toshihiko Mandai
,
Hiroko Naya
, and
Hyuma Masu
Journal:
The Journal of Physical Chemistry C
Date Uploaded:
20/04/2024
The Effect of Li Ion and Anion Supply on Li Dissolution/Deposition Behavior in LiNO3 Electrolyte Solutions for Li-Air Batteries
Description/Abstract:
Although Li-air batteries (LAB) have a high theoretical energy density (3500 Wh kg−1), further developments are required to overcome thei...
Keyword:
Li-Air Battery
Resource Type:
Article
Author:
Fumisato OZAWA
,
Kazuki Koyama
,
Daiki IWASAKI
,
Shota AZUMA
,
Akihiro NOMURA
, and
Morihiro SAITO
Journal:
ELECTROCHEMISTRY
Date Uploaded:
19/04/2024
Formation of a zirconium oxide crystal nucleus in the initial nucleation stage in aluminosilicate glass investigated by X-ray multiscale analysis
Description/Abstract:
Understanding the nucleation mechanism in glass is crucial for the development of new glass-ceramic materials. Herein, we report the stru...
Keyword:
Anomalous X-ray scattering
,
Glass
, and
Glass ceramics
Resource Type:
Article
Author:
Yohei Onodera
,
Yasuyuki Takimoto
,
Hiroyuki Hijiya
,
Qing Li
,
Hiroo Tajiri
,
Toshiaki Ina
, and
Shinji Kohara
Journal:
NPG Asia Materials
Date Uploaded:
19/04/2024
Development of p-type Ion Implantation Technique for Realization of GaN Vertical MOSFETs
Description/Abstract:
GaN has attracted attention as a semiconductor material for next-generation power switching devices. Vertical-type GaN devices with MOS g...
Keyword:
atom probe tomography
,
gallium nitride
, and
transmission electron microscopy
Resource Type:
ProceedingsArticle
Author:
Ryo Tanaka
,
Shinya Takashima
,
Katsunori Ueno
,
Masahiro Horita
,
Jun Suda
,
Jun Uzuhashi
,
Tadakatsu Ohkubo
, and
Masaharu Edo
Date Uploaded:
19/04/2024
Magnetotransport properties in van der Waals <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>R</mml:mi><mml:msub><mml:mi>Te</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>(</mml:mo><mml:mi>R</mml:mi><mml:mo>=</mml:mo><mml:mi>La</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>Ce</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>Tb</mml:mi><mml:mo>)</mml:mo></mml:math>
Description/Abstract:
Rare-earth tritellurides are van-der-Waals antiferromagnets which have been attracting attention as materials not only with high mobility...
Keyword:
Antiferromagnetism
,
Charge density waves
,
Hall effect
,
Magnetic thin films
,
Magnetoresistance
,
Rare-earth magnetic materials
, and
Shubnikov-de Haas effect
Resource Type:
Article
Author:
Tomo Higashihara
,
Ryotaro Asama
,
Ryoya Nakamura
,
Mori Watanabe
,
Nanami Tomoda
,
Thomas Johannes Hasiweder
,
Yuita Fujisawa
,
Yoshinori Okada
,
Takuya Iwasaki
,
Kenji Watanabe
,
Takashi Taniguchi
,
Nan Jiang
, and
Yasuhiro Niimi
Journal:
Physical Review B
Date Uploaded:
19/04/2024
Inelastic neutron scattering studies on the eight-spin zigzag-chain compound <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>KCu</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">P</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>12</mml:mn></mml:msub></mml:mrow></mml:math>: Confirmation of the validity of a data-driven technique based on machine learning
Description/Abstract:
We performed inelastic neutron scattering (INS) experiments on KCu4P3O12 powder and compared the experimental results with those calculat...
Keyword:
Inelastic neutron scattering
,
data-driven technique based on machine learning
, and
eight-spin zigzag-chain compound KCu4P3O12
Resource Type:
Article
Author:
Masashi Hase
,
Ryo Tamura
,
Koji Hukushima
,
Shinichiro Asai
,
Takatsugu Masuda
,
Shinichi Itoh
, and
Andreas Dönni
Journal:
Physical Review B
Date Uploaded:
18/04/2024
Effects of the Cr and Ni concentrations on the fatigue and corrosion resistances of Fe−Mn−Cr−Ni−Si alloys for seismic damping applications
Description/Abstract:
Previous research has shown that Fe–Mn–Cr–Ni–Si alloys offer excellent low-cycle fatigue resistance via reversible bidirectional transfor...
Keyword:
martensitic transformation
,
corrosion resistance
,
fatigue
,
microstructure
, and
steel
Resource Type:
Article
Author:
Fumiyoshi Yoshinaka
,
Yusuke Tsutsumi
,
Tomoya Nagira
,
Susumu Takamori
,
Satoshi Emura
,
Takahiro Sawaguchi
,
Hideki Katayama
,
Terumi Nakamura
,
Yasuhiko Inoue
,
Susumu Motomura
, and
Atsumichi Kushibe
Journal:
ISIJ INTERNATIONAL
Date Uploaded:
18/04/2024
Mechanism of local hydrogen entry into Fe sheets induced by atmospheric corrosion: Significance of potential, pH, and rust layer thickness
Description/Abstract:
Local hydrogen entry under a NaCl droplet on an Fe sheet was analyzed employing a hydrogenochromic sensor and electrochemical hydrogen pe...
Keyword:
Iron, Hydrogen permeation, Atmospheric corrosion
Resource Type:
Article
Author:
Hiroshi Kakinuma
,
Sachiko Hiromoto
,
Tomohiko Hojo
,
Saya Ajito
,
Motomichi Koyama
, and
Eiji Akiyama
Journal:
Corrosion Science
Date Uploaded:
17/04/2024
Fabrication of thin-film batteries composed of LiCoO2, Li3PO4, and Li layers
Description/Abstract:
This paper reports the fabrication of thin film batteries which are composed of three stacking layers; LiCoO2, Li3PO4, and Li. First, a L...
Keyword:
Li-ion battery
,
Li3PO4
,
LiCoO2
,
all solid-state battery
, and
thin fiilm battery
Resource Type:
Article
Author:
Tsuyoshi Ohnishi
Journal:
Journal of Solid State Electrochemistry
Date Uploaded:
17/04/2024
Growth dynamics of selective-area-grown rutile-type SnO2 on TiO2 (110) substrate
Description/Abstract:
We demonstrated selective-area growth of r-SnO2 on a SiO2-masked r-TiO2 (110) substrate. The heteroepitaxy on a window started with a Vol...
Keyword:
SnO2
and
selective area growth
Resource Type:
Article
Author:
Hitoshi Takane
,
Takayoshi Oshima
,
Katsuhisa Tanaka
, and
Kentaro Kaneko
Journal:
Applied Physics Express
Date Uploaded:
13/04/2024
Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels
Description/Abstract:
The yield-point phenomena in ferrite–pearlite duplex steels were investigated using multiscale computational simulations. In these multis...
Keyword:
yield-point phenomenon
Resource Type:
Article
Author:
Shinnosuke Yanagawa
and
Ikumu Watanabe
Journal:
ISIJ International
Date Uploaded:
12/04/2024
Minimal-surface-based multiphase metamaterials with highly variable stiffness
Description/Abstract:
Variable-stiffness materials have a unique ability to change their stiffness reversibly in response to external stimuli or conditions. Ho...
Keyword:
Low-melting-point alloys
,
Mechanical metamaterials
,
Phase transition
,
Shape memory
,
Triply periodic minimal surfaces
, and
Variable-stiffness materials
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Ikumu Watanabe
,
Siqian Wang
,
Ta-Te Chen
, and
Masanobu Naito
Journal:
Materials & Design
Date Uploaded:
12/04/2024
Multi-objective topology optimization of porous microstructure in die-bonding layer of a semiconductor
Description/Abstract:
To enhance semiconductor efficiency, it is imperative to develop a die-bonding material possessing exceptional thermal conductivity and s...
Keyword:
Multi-objective topology optimization
,
finite element analysis
,
highthroughput evaluation
,
microstructure design
, and
porous microstructure
Resource Type:
Article
Author:
Jiaxin Zhou
,
Ikumu Watanabe
,
Weikang Song
,
Keita Kambayashi
, and
Ta-Te Chen
Journal:
Science and Technology of Advanced Materials: Methods
Date Uploaded:
12/04/2024
Mechanical Properties, Tissue Structure, and Elemental Composition of the Walking Leg Tips of Coconut Crabs
Description/Abstract:
The coconut crab has black protrusions on the tops of its walking legs and claw fingers. In addition, there are regularly aligned small b...
Keyword:
elemental composition
,
mechanical properties
,
nanoindentation
,
organic matter
,
tissue structure
, and
α-chitin
Resource Type:
Article
Author:
Tadanobu Inoue
,
Shin-ichiro Oka
, and
Takanobu Hiroto
Journal:
Journal of Marine Science and Engineering
Date Uploaded:
12/04/2024
Anisotropic optical conductivity accompanied by a small energy gap in the one-dimensional thermoelectric telluride <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi mathvariant="normal">Ta</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi>SiTe</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
Description/Abstract:
We investigated the optical properties of single crystals of one-dimensional van der Waals crystal Ta4SiTe4, which exhibited high thermoe...
Keyword:
Optical Conductivity
,
one-dimensional
, and
van der Waals
Resource Type:
Article
Author:
Fumiya Matsunaga
,
Yoshihiko Okamoto
,
Yasunori Yokoyama
,
Kanji Takehana
,
Yasutaka Imanaka
,
Yuto Nakamura
,
Hideo Kishida
,
Shoya Kawano
,
Kazuyuki Matsuhira
, and
Koshi Takenaka
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Crucial role of interfacial <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>s</mml:mi><mml:mtext>−</mml:mtext><mml:mi>d</mml:mi></mml:mrow></mml:math> exchange interaction in the temperature dependence of tunnel magnetoresistance
Description/Abstract:
The tunnel magnetoresistance (TMR) is one of the most important spintronic phenomena but its reduction at finite temperature is a severe ...
Keyword:
Exchange interaction
,
Magnetic tunnel junction
,
Spintronics
, and
Tunnel magnetoresistance
Resource Type:
Article
Author:
Keisuke Masuda
,
Terumasa Tadano
, and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Bias voltage effects on tunneling magnetoresistance in Fe/MgAl2O4/Fe(001) junctions: Comparative study with Fe/MgO/Fe(001) junctions
Description/Abstract:
スピネルバリアを用いた磁気トンネル接合Fe/MgAl2O4/Feの電圧特性を理論的に解析し、その結果をFe/MgO/Feの電圧特性と比較した。その結果、Fe/MgAl2O4/Feでは電極でのバンド折りたたみが起こるため、磁気抵抗比の電圧耐性がFe/MgO/Feよりも高くなる...
Keyword:
Magnetic tunnel junction
,
Spinel
,
Spintronics
, and
Tunnel magnetoresistance
Resource Type:
Article
Author:
Keisuke Masuda
and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
First-principles study of the anisotropic magneto-Peltier effect
Description/Abstract:
We study theoretically the anisotropic magneto-Peltier effect, which was recently demonstrated experimen-tally. A first-principles-based ...
Keyword:
Peltier effect
,
Spin caloritronics
, and
Spintronics
Resource Type:
Article
Author:
Keisuke Masuda
,
Ken-ichi Uchida
,
Ryo Iguchi
, and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
First-principles study on magnetic tunneling junctions with semiconducting CuInSe2and CuGaSe2barriers
Description/Abstract:
半導体バリアCuInSe2、CuGaSe2を持つ磁気トンネル接合の伝導特性を第一原理計算によって調べた。その結果、両トンネル接合でΔ1状態の波動関数のコヒーレントトンネル現象が生じ、高いMR比が得られることが分かった。
Keyword:
Magnetic tunnel junction
,
Spintronics
, and
Tunnel magnetoresistance
Resource Type:
Article
Author:
Keisuke Masuda
and
Yoshio Miura
Journal:
Japanese Journal of Applied Physics
Date Uploaded:
11/04/2024
Giant interfacial perpendicular magnetic anisotropy in Fe/CuIn1−xGaxSe2 beyond Fe/MgO
Description/Abstract:
We study interfacial magnetocrystalline anisotropies in various Fe/semiconductor heterostructures by means of first-principles calculatio...
Keyword:
Magnetic anisotropy
,
Magnetic tunnel junction
, and
Spintronics
Resource Type:
Article
Author:
Keisuke Masuda
,
Shinya Kasai
,
Yoshio Miura
, and
Kazuhiro Hono
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Interface-driven giant tunnel magnetoresistance in (111)-oriented junctions
Description/Abstract:
We theoretically study the tunnel magnetoresistance (TMR) effect in (111)-oriented junctions Co/MgO/Co(111) and Ni/MgO/Ni(111). The Co-ba...
Keyword:
Magnetic tunnel junction
,
Spintronics
, and
Tunnel magnetoresistance
Resource Type:
Article
Author:
Keisuke Masuda
,
Hiroyoshi Itoh
, and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Interfacial giant tunnel magnetoresistance and bulk-induced large perpendicular magnetic anisotropy in (111)-oriented junctions with fcc ferromagnetic alloys: A first-principles study
Description/Abstract:
We study the tunnel magnetoresistance (TMR) effect and magnetocrystalline anisotropy in a series of magnetic tunnel junctions (MTJs) with...
Keyword:
Magnetic anisotropy
,
Magnetic tunnel junction
,
Spintronics
, and
Tunnel magnetoresistance
Resource Type:
Article
Author:
Keisuke Masuda
,
Hiroyoshi Itoh
,
Yoshiaki Sonobe
,
Hiroaki Sukegawa
,
Seiji Mitani
, and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Perpendicular magnetic anisotropy at the Fe/MgAl2O4 interface: Comparative first-principles study with Fe/MgO
Description/Abstract:
磁気ヘテロ接合Fe/MgAl2O4の界面の磁気異方性について第一原理計算に基づいた解析を行った。垂直磁気異方性が得られることがわかり、その起源についても微視的な解析によって理解が得られた。また、より大きな垂直磁気異方性を得る手段として界面への重元素挿入の可能性についても検討した。
Keyword:
Magnetic anisotropy
,
Magnetic tunnel junction
, and
Spintronics
Resource Type:
Article
Author:
Keisuke Masuda
and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Band-folding-driven high tunnel magnetoresistance ratios in (111)-oriented junctions with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>SrTiO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> barriers
Description/Abstract:
We theoretically study the tunnel magnetoresistance (TMR) effect in novel (111)-oriented magnetic tunnel junctions (MTJs) with SrTiO3 bar...
Keyword:
Magnetic tunnel junction
,
Spintronics
, and
Tunnel magnetoresistance
Resource Type:
Article
Author:
Keisuke Masuda
,
Hiroyoshi Itoh
,
Yoshiaki Sonobe
,
Hiroaki Sukegawa
,
Seiji Mitani
, and
Yoshio Miura
Journal:
Physical Review B
Date Uploaded:
11/04/2024
Date Modified:
11/04/2024
Theoretical Study on Magnetic Tunneling Junctions with Semiconductor Barriers CuInSe<sub>2</sub> and CuGaSe<sub>2</sub> Including a Detailed Analysis of Band-Resolved Transmittances
Description/Abstract:
2つの半導体バリアを持つ磁気トンネル接合(Fe/CuInSe2/Fe及びFe/CuGaSe2/Fe)の磁気伝導特性に関し、第一原理計算に基づく詳細な解析を行った。本論文ではその結果について議論を行った。
Keyword:
Magnetic tunnel junction
,
Spintronics
,
Tunnel magnetoresistance
, and
semiconductor
Resource Type:
Article
Author:
K. Masuda
and
Y. Miura
Journal:
Journal of the Magnetics Society of Japan
Date Uploaded:
11/04/2024
Date Modified:
11/04/2024
Effects of time per layer and part geometry on thermal history and microcracking in the fabrication of nickel superalloy samples by laser powder bed fusion
Description/Abstract:
In this work, the purpose of the current study is to understand the effects of time per layer and part geometry on microcracking behavior...
Keyword:
Constricted geometry
,
Inconel 738 LC
,
Laser powder bed fusion
,
Microcracking
,
Thermal analysis
, and
Time per layer
Resource Type:
Article
Author:
Masahiro Kusano
,
Yusuke Takata
,
Atsushi Yumoto
, and
Makoto Watanabe
Journal:
Additive Manufacturing
Date Uploaded:
10/04/2024
Exotic magnetism in perovskite KOsO3
Description/Abstract:
A new perovskite KOsO3 has been stabilized under high-pressure and high-temperature conditions. It is cubic at 500 K (Pm-3m) and undergoe...
Keyword:
KOsO3
Resource Type:
Article
Author:
Jie Chen
,
Hongze Li
,
Javier Gainza
,
Angel Munoz
,
Jose A. Alonso
,
Jue Liu
,
Yu-Sheng Chen
,
ベリック アレクセイ
,
山浦 一成
,
Jiaming He
,
Xinyu Li
,
John B. Goodenough
, and
J.-S. Zhou
Journal:
PHYSICAL REVIEW LETTERS
Date Uploaded:
10/04/2024
Pt/GaN Schottky barrier height lowering by incorporated hydrogen
Description/Abstract:
Changes in the hydrogen-induced Schottky barrier height (ΦB) of Pt/GaN rectifiers fabricated on free-standing GaN substrates were investi...
Keyword:
GaN
,
Schottky barrier height
, and
hydrogen
Resource Type:
Article
Author:
色川 芳宏
,
大井 暁彦
,
生田目 俊秀
, and
小出 康夫
Journal:
ECS Journal of Solid State Science and Technology
Date Uploaded:
10/04/2024
High‐Temperature and High‐Electron Mobility Metal‐Oxide‐Semiconductor Field‐Effect Transistors Based on N‐Type Diamond
Description/Abstract:
Here, electronic-grade phosphorus-doped n-type diamond epilayer with anatomically flat surface based on step-flow nucleation mode is fabr...
Keyword:
Diamond, n-type, MOSFET
Resource Type:
Article
Author:
Meiyong Liao
,
Huanying Sun
, and
Satoshi Koizumi
Journal:
Advanced Science
Date Uploaded:
09/04/2024
Recent Progress in Controlled Nanostructure of Colloidal Nanocrystal Powders for Efficient Light Emission
Description/Abstract:
The application of semiconductor nanocrystals containing cadmium, lead, selenium and mercury as constituent elements is strictly limited ...
Keyword:
Colloidal Quantum dots
,
Double Perovskite Nanocrystals
,
Quantum dot light-emitting diodes
,
Quantum dot photodetectors
,
Silicon Quantum Dots
, and
Thermal theranostics
Resource Type:
Article
Author:
Naoto Shirahata
Journal:
KONA Powder and Particle Journal
Date Uploaded:
09/04/2024
Chemical-substitution-driven giant anomalous Hall and Nernst effects in magnetic cubic Heusler compounds
Description/Abstract:
Chemical substitution efficiently optimizes the physical properties of Heusler compounds, especially their anomalous transport properties...
Keyword:
Anomalous Hall conductivity
,
Anomalous Nernst conductivity
,
Heusler compounds
, and
High-throughput screening
Resource Type:
Article
Author:
Guangzong Xing
,
Keisuke Masuda
,
Terumasa Tadano
, and
Yoshio Miura
Journal:
Acta Materialia
Date Uploaded:
09/04/2024
Heat Source Model Development for Thermal Analysis of Laser Powder Bed Fusion Using Bayesian Optimization and Machine Learning
Description/Abstract:
To understand the correlation between process, structures, and properties in laser powder bed fusion (L-PBF), it is essential to use nume...
Keyword:
Bayesian optimization
,
Heat source model
,
Laser powder bed fusion
,
Laser scanning conditions
,
Multiple linear regression
, and
Thermal analysis
Resource Type:
Article
Author:
Masahiro Kusano
and
Makoto Watanabe
Journal:
Integrating Materials and Manufacturing Innovation
Date Uploaded:
09/04/2024
Superconducting joints using reacted multifilament MgB2 wires: A technology toward cryogen-free MRI magnets
Description/Abstract:
The development of superconducting joining technology for reacted magnesium diboride (MgB2) conductors remains a critical challenge for t...
Keyword:
MRI applications
,
MgB2 conductor
,
MgB2 superconducting joint
,
cryogen-free magnet
, and
persistent-mode operation
Resource Type:
Article
Author:
Dipak Patel
,
Akiyoshi Matsumoto
,
Hiroaki Kumakura
,
Yuka Hara
,
Toru Hara
,
Minoru Maeda
,
Hao Liang
,
Yusuke Yamauchi
,
Seyong Choi
,
Jung Ho Kim
, and
Md Shahriar A. Hossain
Journal:
Journal of Magnesium and Alloys
Date Uploaded:
08/04/2024
Approach to Low Contact Resistance Formation on Buried Interface in Oxide Thin-Film Transistors: Utilization of Palladium-Mediated Hydrogen Pathway
Description/Abstract:
Amorphous oxide semiconductors (AOSs) with low off-currents and processing temperatures offer promising alternative materials for next-ge...
Keyword:
IGZO
,
contact resistance
,
hydrogen
,
oxide semiconductors
,
palladium
, and
thin-film transistors
Resource Type:
Article
Author:
Yuhao Shi
,
Masatake Tsuji
,
Hanjun Cho
,
Shigenori Ueda
,
Junghwan Kim
, and
Hideo Hosono
Journal:
ACS Nano
Date Uploaded:
08/04/2024
Critical current improvement and resistance evaluation of superconducting joint between Bi2223 tapes
Description/Abstract:
We improved the critical current (Ic) of the superconducting joint between the Bi2223 tapes by introducing the two-step sintering process...
Keyword:
Superconducting joint
Resource Type:
Article
Author:
Y Takeda
,
K Kobayashi
,
A Uchida
,
H Kitaguchi
,
G Nishijima
,
Y Yanagisawa
,
T Nakashima
,
S Yamade
,
S Kobayashi
,
T Kato
,
S Nakamura
,
T Motoki
, and
J Shimoyama
Journal:
Superconductor Science and Technology
Date Uploaded:
05/04/2024
Development of a Persistent Current Mode 9.39 T (400 MHz) LTS/Bi-2223 NMR Magnet With a Bi-2223 Superconducting Joint
Description/Abstract:
We developed and operated a persistent current (PC) mode 9.39 T (400 MHz for 1H NMR) LTS/Bi-2223 NMR magnet using a Bi-2223 insert coil w...
Keyword:
Persistent current
Resource Type:
Article
Author:
Y. Takeda
,
Y. Suetomi
,
U. Nakai
,
R. Piao
,
Y. Matsutake
,
T. Yagai
,
T. Motoki
,
J. Shimoyama
,
M. Hamada
,
K. Saito
, and
Y. Yanagisawa
Journal:
IEEE Transactions on Applied Superconductivity
Date Uploaded:
05/04/2024
Review of the temporal stability of the magnetic field for ultra-high field superconducting magnets with a particular focus on superconducting joints between HTS conductors
Description/Abstract:
Superconducting magnets used in applications such as magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR) require signif...
Keyword:
Superconducting joint
Resource Type:
Article
Author:
Y Takeda
,
H Maeda
,
K Ohki
, and
Y Yanagisawa
Journal:
Superconductor Science and Technology
Date Uploaded:
05/04/2024
Consideration of Magnetic Flux Distribution in Multi−Filamented YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7−δ</sub> Films by Controlling Crystal Array Using Surface−Modified Substrate
Description/Abstract:
Large direct currents can flow through REBa2Cu3O7−δ (REBCO) wires without energy loss because of zero resistance. However, they suffer fr...
Keyword:
Multi−filamentary superconductors
Resource Type:
Article
Author:
Hiroki Fujimoto
,
Akiyoshi Matsumoto
,
Shuuichi Ooi
,
Minoru Tachiki
,
Masayoshi Inoue
, and
Ryo Teranishi
Journal:
IEEE Transactions on Applied Superconductivity
Date Uploaded:
05/04/2024
The effect of intermediate layer densification on the critical current of a Bi-2223 superconducting joint
Description/Abstract:
The effect of intermediate layer densification on the critical current (Ic) of Bi-2223 superconducting joints was quantitatively studied....
Keyword:
Superconducting joint
Resource Type:
Article
Author:
Y Takeda
,
G Nishijima
,
K Inoue
,
Y Takano
, and
H Kitaguchi
Journal:
Superconductor Science and Technology
Date Uploaded:
05/04/2024
Interpretation of time-dependent current and resistance of HTS closed loop with superconducting joint considering flux creep
Description/Abstract:
A low circuit resistance is required for a superconducting magnet operated in persistent mode using superconducting joints. We performed ...
Keyword:
Superconducting joint
Resource Type:
Article
Author:
Yasuaki Takeda
,
Yuji Tsuchiya
, and
Gen Nishijima
Journal:
Applied Physics Express
Date Uploaded:
05/04/2024
Angular Dependence of Critical Current and Grain Alignment in Bi-2223 Superconducting Joint
Description/Abstract:
We clarify the relationship between the angular dependence of critical current in a Bi-2223 superconducting joint and grain alignment in ...
Keyword:
Bi-2223 tape
,
HTS magnets
, and
critical current
Resource Type:
Article
Author:
Yasuaki Takeda
,
Gen Nishijima
,
Ukyo Nakai
,
Takanori Motoki
,
Jun-ichi Shimoyama
, and
Hitoshi Kitaguchi
Journal:
IEEE Transactions on Applied Superconductivity
Date Uploaded:
05/04/2024
Angular dependence of resistance and critical current of a Bi-2223 superconducting joint
Description/Abstract:
Low resistance and high critical current are prerequisites for superconducting joints used in persistent-mode magnets. Herein, we use a j...
Keyword:
Superconducting joint
Resource Type:
Article
Author:
Y Takeda
,
G Nishijima
,
U Nakai
,
T Motoki
,
J Shimoyama
, and
H Kitaguchi
Journal:
Superconductor Science and Technology
Date Uploaded:
05/04/2024
Particle Size Effect on Powder Packing Properties and Molten Pool Dimensions in Laser Powder Bed Fusion Simulation
Description/Abstract:
Various defects are produced during laser powder bed fusion (L-PBF) process, and can affect the quality of the fabricated part. Past stud...
Keyword:
discrete-element method
,
laser powder bed fusion
,
multiphysics CFD simulation
,
packing fraction
,
packing homogeneity
,
particle size
, and
powder spreading
Resource Type:
Article
Author:
Jun Katagiri
,
Sukeharu Nomoto
,
Masahiro Kusano
, and
Makoto Watanabe
Journal:
Journal of Manufacturing and Materials Processing
Date Uploaded:
05/04/2024
Biofabrication of engineered blood vessels for biomedical applications
Description/Abstract:
To successfully engineer large-sized tissues, establishing vascular structures is essential for providing oxygen, nutrients, growth facto...
Keyword:
3D printing
,
Blood vessel engineering
,
biofabrication
,
endothelialization
, and
large-sized tissues
Resource Type:
Article
Author:
Panitporn Laowpanitchakorn
,
Jinfeng Zeng
,
Marie Piantino
,
Kentaro Uchida
,
Misa Katsuyama
, and
Michiya Matsusaki
Journal:
Science and Technology of Advanced Materials
Date Uploaded:
04/04/2024
Mechanical control of molecular machines at an air–water interface: manipulation of molecular pliers, paddles
Description/Abstract:
Many artificial molecular machines have been synthesized, and various functions have been expressed by changing their molecular conformat...
Keyword:
Langmuir-blodgett
,
Molecular machine
,
air–water interface
,
molecular conformation
, and
monolayer
Resource Type:
Article
Author:
Taizo Mori
Journal:
Science and Technology of Advanced Materials
Date Uploaded:
04/04/2024
Visualization of spin-polarized electronic states by imaging-type spin-resolved photoemission microscopy
Description/Abstract:
Visualizing spin-polarized electronic states aids in designing and developing new materials and devices. Spin-resolved photoemission spec...
Keyword:
High spatial resolution
,
Multichannel spin detection
,
Spin-polarized electronic state
, and
Spin-resolved photoemission microscopy
Resource Type:
Article
Author:
Koichiro Yaji
and
Shunsuke Tsuda
Journal:
Science and Technology of Advanced Materials: Methods
Date Uploaded:
04/04/2024
Optimum asymmetry for nanofabricated refractometric sensors at quasi-bound states in the continuum
Description/Abstract:
A symmetry-protected bound state in the continuum (BIC) is one of the bases for high-resolution photonic refractometric sensors that rely...
Keyword:
BIC
,
biosensors
,
bound states in the continuum
, and
metasurfaces
Resource Type:
Article
Author:
Keisuke Watanabe
and
Masanobu Iwanaga
Journal:
Applied Physics Letters
Date Uploaded:
03/04/2024
Vibrational Coupling to Quasi‐Bound States in the Continuum under Tailored Coupling Conditions
Description/Abstract:
Photonic resonance modes can be spectrally coupled to the vibrational modes of molecules in the mid-infrared regime through interactions ...
Keyword:
BIC
,
SEIRA
,
metasurfaces
,
spectroscopy
, and
strong coupling
Resource Type:
Article
Author:
Keisuke Watanabe
,
Hemam Rachna Devi
,
Masanobu Iwanaga
, and
Tadaaki Nagao
Journal:
Advanced Optical Materials
Date Uploaded:
03/04/2024
Date Modified:
11/04/2024
Quantitative characterization of built-in potential profile across GaAs p–n junctions using Kelvin probe force microscopy with qPlus sensor AFM
Description/Abstract:
The electrostatic potential distribution in materials and devices plays an important role in controlling the behaviors of charge carriers...
Keyword:
GaAs(110)
,
Kelvin probe force microscopy
,
p-n junction
, and
qPlus sensor
Resource Type:
Article
Author:
Nobuyuki Ishida
and
Takaaki Mano
Journal:
Nanotechnology
Date Uploaded:
03/04/2024
Prominently enhanced luminescence from a continuous monolayer of transition metal dichalcogenide on all-dielectric metasurfaces
Description/Abstract:
2D materials such as transition metal dichalcogenides (TMDCs) are a new class of atomic-layer materials possessing optical and electric p...
Keyword:
2D materials
,
all-dielectric metasurface
,
coherent photon emitter
,
enhanced photoluminescence
,
resonance enhancement
,
transition metal dichalcogenide
, and
tungsten disulfide
Resource Type:
Article
Author:
Masanobu Iwanaga
,
Xu Yang
,
Vasilios Karanikolas
,
Takashi Kuroda
, and
Yoshiki Sakuma
Journal:
Nanophotonics
Date Uploaded:
03/04/2024
Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations
Description/Abstract:
Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manuf...
Keyword:
Computational thermal-fluid dynamics simulation
,
Hastelloy-X nickel-based superalloy
,
Laser powder-bed fusion
,
Phase-field method
, and
Solute element segregation
Resource Type:
Article
Author:
Masayuki Okugawa
,
Kenji Saito
,
Haruki Yoshima
,
Katsuhiko Sawaizumi
,
Sukeharu Nomoto
,
Makoto Watanabe
,
Takayoshi Nakano
, and
Yuichiro Koizumi
Journal:
Additive Manufacturing
Date Uploaded:
02/04/2024
Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospective
Description/Abstract:
Halide perovskites, in the form of thin films and colloidal nanocrystals, have recently taken semiconductor optoelectronics research by s...
Keyword:
halide perovskite
Resource Type:
Article
Author:
Iago López‐Fernández
,
Donato Valli
,
Chun‐Yun Wang
,
Subarna Samanta
,
Takuya Okamoto
,
Yi‐Teng Huang
,
Kun Sun
,
Yang Liu
,
Vladimir S. Chirvony
,
Avijit Patra
,
Juliette Zito
,
Luca De Trizio
,
Deepika Gaur
,
Hong‐Tao Sun
,
Zhiguo Xia
,
Xiaoming Li
,
Haibo Zeng
,
Iván Mora‐Seró
,
Narayan Pradhan
,
Juan P. Martínez‐Pastor
,
Peter Müller‐Buschbaum
,
Vasudevanpillai Biju
,
Tushar Debnath
,
Michael Saliba
,
Elke Debroye
,
Robert L. Z. Hoye
,
Ivan Infante
,
Liberato Manna
, and
Lakshminarayana Polavarapu
Journal:
Advanced Functional Materials
Date Uploaded:
02/04/2024
Quantitative Characterization by Transmission Electron Microscopy and Its Application to Interfacial Phenomena in Crystalline Materials
Description/Abstract:
This paper reviews quantitative characterization via transmission electron microscopy (TEM) and its application to interfacial phenomena ...
Keyword:
electron energy loss spectroscopy
,
energy dispersive X-ray spectroscopy
,
grain boundary
,
interphase boundary
, and
transmission electron microscopy
Resource Type:
Article
Author:
Seiichiro Ii
Journal:
Materials
Date Uploaded:
02/04/2024
Local- and Intermediate-range Partial Structure Study of As–Se Glasses
Description/Abstract:
To investigate the relationship between the partial structures and the stiffness transition in AsxSe1−x glasses, anomalous X-ray scatteri...
Keyword:
chalcogenide glass
and
structure
Resource Type:
Article
Author:
Shinya Hosokawa
,
Jens Rüdiger Stellhorn
,
Nathalie Boudet
,
Nils Blanc
,
Eisuke Magome
,
László Pusztai
,
Shinji Kohara
,
Kazutaka Ikeda
, and
Toshiya Otomo
Journal:
Journal of the Physical Society of Japan
Date Uploaded:
01/04/2024
Atomic and Electronic Structures on a Mordenite Zeolite
Description/Abstract:
Atomic structures of an insulating and hydrophobic zeolite sample of mordenite were measured by high-energy X-ray diffraction, and a pair...
Keyword:
structure
and
zeolite
Resource Type:
Article
Author:
Shinya Hosokawa
,
Hitoshi Sato
,
Yasuhisa Tezuka
,
Jun-ichi Adachi
,
Koji Kimura
,
Koichi Hayashi
,
Shinji Kohara
,
Hiroo Tajiri
,
Kentaro Kobayashi
,
Akihide Koura
, and
Fuyuki Shimojo
Journal:
e-Journal of Surface Science and Nanotechnology
Date Uploaded:
01/04/2024
Siliceous zeolite-derived topology of amorphous silica
Description/Abstract:
The topology of amorphous materials is an important topic from the perspective of structural ordering. Compression, one of the sintering ...
Keyword:
densified amorphous
,
silicalite
,
structure
,
topology
, and
zeolite
Resource Type:
Article
Author:
Hirokazu Masai
,
Shinji Kohara
,
Toru Wakihara
,
Yuki Shibazaki
,
Yohei Onodera
,
Atsunobu Masuno
,
Sohei Sukenaga
,
Koji Ohara
,
Yuki Sakai
,
Julien Haines
,
Claire Levelut
,
Philippe Hébert
,
Aude Isambert
,
David A. Keen
, and
Masaki Azuma
Journal:
Communications Chemistry
Date Uploaded:
01/04/2024
Atomic and Electronic Structure in MgO–SiO<sub>2</sub>
Description/Abstract:
Understanding disordered structure is difficult due to insufficient information in experimental data. Here we overcome this issue by usin...
Keyword:
Glass
,
Neutron diffraction
,
Structure
, and
X-ray diffraction
Resource Type:
Article
Author:
Yuta Shuseki
,
Shinji Kohara
,
Tomoaki Kaneko
,
Keitaro Sodeyama
,
Yohei Onodera
,
Chihiro Koyama
,
Atsunobu Masuno
,
Shunta Sasaki
,
Shohei Hatano
,
Motoki Shiga
,
Ippei Obayashi
,
Yasuaki Hiraoka
,
Junpei T. Okada
,
Akitoshi Mizuno
,
Yuki Watanabe
,
Yui Nakata
,
Koji Ohara
,
Motohiko Murakami
,
Matthew G. Tucker
,
Marshall T. McDonnell
,
Hirohisa Oda
, and
Takehiko Ishikawa
Journal:
The Journal of Physical Chemistry A
Date Uploaded:
01/04/2024
Microstructure and thermoelectric properties of pristine and Al-doped ZnO ceramics fabricated by cost-effective and eco-friendly wet chemistry methods
Description/Abstract:
We have shown that mainly due to the differences in microstructure and possibly the varying amount of crystalline defects in the samples,...
Keyword:
thermoelectric
Resource Type:
Article
Author:
Illia Serhiienko
,
Andrei Novitskii
,
Tatyana Sviridova
,
Evgeny Kolesnikov
,
Evgeniya Chernyshova
,
Kirill Kuskov
,
Andrei Voronin
,
Vladimir Khovaylo
, and
Takao Mori
Journal:
Journal of Alloys and Compounds
Date Uploaded:
01/04/2024
Microgravity effects on nonequilibrium melt processing of neodymium titanate: thermophysical properties, atomic structure, glass formation and crystallization
Description/Abstract:
The relationships between materials processing and structure can vary between terrestrial and reduced gravity environments. As one case s...
Keyword:
Liquid
,
Structure
,
Thermophysical properties
, and
levitation
Resource Type:
Article
Author:
Stephen K. Wilke
,
Abdulrahman Al-Rubkhi
,
Chihiro Koyama
,
Takehiko Ishikawa
,
Hirohisa Oda
,
Brian Topper
,
Elizabeth M. Tsekrekas
,
Doris Möncke
,
Oliver L. G. Alderman
,
Vrishank Menon
,
Jared Rafferty
,
Emma Clark
,
Alan L. Kastengren
,
Chris J. Benmore
,
Jan Ilavsky
,
Jörg Neuefeind
,
Shinji Kohara
,
Michael SanSoucie
,
Brandon Phillips
, and
Richard Weber
Journal:
npj Microgravity
Date Uploaded:
01/04/2024
Experiment and Simulation on Mechanical Behavior in 1/2-Scale Demonstration REBCO Coil System of Skeleton Cyclotron for Cancer Therapy
Description/Abstract:
We have introduced the Skeleton Cyclotron, a high- temperature superconducting (HTS) air-core compact cyclotron designed to produce medic...
Keyword:
Cyclotron
,
High-temperature superconducting magnet
,
Mechanical property
, and
No-insulation coil
Resource Type:
Article
Author:
Hiroshi Ueda
,
Ryota Komae
,
Aoi Yamashita
,
Ryota Inoue
,
SeokBeom Kim
,
So Noguchi
,
Tomonori Watanabe
,
Mitsuhiro Fukuda
,
Gen Nishijima
,
Rui Kumagai
, and
Atsushi Ishiyama
Journal:
IEEE Transactions on Applied Superconductivity
Date Uploaded:
01/04/2024
Heating rate dependence of coercivity and microstructure of Fe–B–P–Cu nanocrystalline soft magnetic materials
Description/Abstract:
The nanocrystalline structure and soft magnetic properties of melt-spun Fe-B-P-Cu ribbons are largely influenced by heating rates for cry...
Keyword:
atom probe tomography
Resource Type:
Article
Author:
Yohei Nomura
,
Jun Uzuhashi
,
Tatsuya Tomita
,
Toru Takahashi
,
Hidenori Kuwata
,
Taichi Abe
,
Tadakatsu Ohkubo
, and
Kazuhiro Hono
Journal:
Journal of Alloys and Compounds
Date Uploaded:
29/03/2024
Effective Conduction Path of a C<sub>60</sub> Chain in a Nanogap Electrode
Description/Abstract:
The electrical current path of fullerene-derived films between microfabricated sharpened metal electrodes (gaps of 10–20 nm) was evaluate...
Keyword:
fullerene
,
C60 pyrrolidine tris-acid (CPTA)
,
nanogap electrode
,
polymerization
, and
resistance switching
Resource Type:
Article
Author:
Masato Takei
,
Takuma Hirama
,
Hiroshi Suga
,
Katsunori Wakabayashi
, and
Kazuhito Tsukagoshi
Journal:
ACS Applied Electronic Materials
Date Uploaded:
29/03/2024
Ferroic order for anisotropic magnetic dipole term in collinear antiferromagnets of (t2g)4 system
Description/Abstract:
We present the possibility of x-ray magnetic circular dichroism on RuO2 with collinear antiferromagnetism (AFM). Given that the crystal s...
Keyword:
Altermagnetism
,
Magnetism
, and
XMCD
Resource Type:
Article
Author:
Norimasa Sasabe
,
Masaichiro Mizumaki
,
Takayuki Uozumi
, and
Yuichi Yamasaki
Journal:
PHYSICAL REVIEW LETTERS
Date Uploaded:
28/03/2024
Combinatorial characterization of metastable luminous silver cations
Description/Abstract:
Thermodynamically metastable glasses that can contain metastable species are important functional materials. X-ray absorption near-edge s...
Keyword:
Density functional theory
,
Glass
,
Neutron diffraction
,
Radiophotoluminescence
,
Reverse Monte Carlo
,
X-ray absorption fine structure
, and
X-ray diffraction
Resource Type:
Article
Author:
Hirokazu Masai
,
Masanori Koshimizu
,
Hiroki Kawamoto
,
Hiroyuki Setoyama
,
Yohei Onodera
,
Kazutaka Ikeda
,
Shingo Maruyama
,
Naoki Haruta
,
Tohru Sato
,
Yuji Matsumoto
,
Chika Takahashi
, and
Teruyasu Mizoguchi
Journal:
Scientific Reports
Date Uploaded:
28/03/2024
Influence of Electrical Polarization on Thrombogenicity of Titania Nanotubes
Description/Abstract:
Ti表面に陽極酸化で作成したチタニアナノチューブを分極化することにより、親水性とナノ構造に加え、静電相互作用により血栓形成を完全に阻害する材料表面を構築することができた。
Keyword:
biocompatibility
,
nanotubes
,
polarization
,
surface modification
, and
titanium dioxide
Resource Type:
Article
Author:
Jyorthana Rajappa Muralidhar
,
Kabilan Sakthivel
,
Madanagurusamy Sridharan
, and
Masanori Kikuchi
Journal:
International Journal of Ceramic Engineering and Science
Date Uploaded:
28/03/2024
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41 elemental solids (Li, Be, graphite, diamond, glassy C, Na, Mg, Al, Si, K, Sc, Ti, V, Cr, Fe, Co, Ni, Cu, Ge, Y, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Cs, Gd, Tb, Dy, Hf, Ta, W, Re, Os, Ir, Pt, Au, and Bi)
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