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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
べき乗則で解釈されるスペクトルの閾値及びべき乗数の自動解析方法
Description/Abstract:
べき乗則に従うスペクトルのべき乗数とべき乗の増加が始まる閾値の自動推定方法(1/n-Power Plot法およびShift-Log-Log Plot法)を提案する。1/n-Power Plot法ではべき乗数の事前情報がある場合に利用し、べき乗数の逆数をスペクトルに適用するこ...
Keyword:
Automatic estimation methods
,
Power Law
, and
threshold
Resource Type:
Dataset
Data origin:
others
Author:
柳生 進二郎
,
吉武 道子
, and
長田 貴弘
Journal:
Journal of Surface Analysis
Date Uploaded:
26/04/2024
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
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
有機アンチ・アンバイポーラトランジスタを用いた多機能論理回路
Description/Abstract:
有機集積回路は、電子タグやヘルスケアーセンサーと組み合わせてリアルタイムの信号を処理するA/Dコンバーターとしての応用が期待されている。しかしながら、単体トランジスタのサイズは未だサブmm程度で集積密度は依然として低い。そのため、素子の微細化だけに依存しない有機集積回路の...
Keyword:
アンチ・アンバイポーラトランジスタ
,
ロジック・イン・メモリ
,
再構成可能2入力論理回路
,
多値論理回路
, and
負性微分トランスコンダクタンス
Resource Type:
Article
Author:
早川 竜馬
,
Panigrahi Debdatta
, and
若山 裕
Journal:
Accounts of Materials & Surface Research
Date Uploaded:
16/04/2024
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
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
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
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
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
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
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
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
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
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
Raw data files for Fig. 6 Auger depth profiles in "Auger Depth Profiling Analysis of HfO2/Si Specimen Using an Ultra Low Angle Incidence Ion Beam"
Description/Abstract:
We have investigated the Auger depth profiling analysis of HfO2/Si by the glancing-angle ion beam sputtering method at an incident angle ...
Keyword:
Auger depth profiling analysis
,
HfO2/Si
, and
Ultra low angle incidence ion beam
Resource Type:
Dataset
Data origin:
experiments
Author:
OGIWARA, Toshiya
,
NAGATA, Takahiro
, and
YOSHIKAWA, Hideki
Date Uploaded:
09/02/2023
Date Modified:
30/03/2024
研究者から見たMendeley
Description/Abstract:
ユーザ目線では「クラウドによる文献管理」と見えるMendeleyは、アプリケーション側からみれば「文献利用度データベース」となり、そのデータはMendeley APIとして公開されている。これは、研究者がMendeleyを利用していなくても、自分の論文の読まれ方が公開されて...
Keyword:
ImpactStory
,
Mendeley
,
ORCID
, and
readership statistics
Resource Type:
Presentation
Author:
轟 眞市
Date Uploaded:
03/02/2023
Date Modified:
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
PEMFC用架橋化されたスルホン化ポリフェニルスルホン電解質膜(III)
Description/Abstract:
本研究ではPPSUのスルホン化条件の検討、スケールアップ、均一・大面積電解質膜による物性と燃料電池特性について報告する。
Keyword:
スルホン化ポリフェニルスルホン
,
ポリフェニルスルホン
,
架橋化ポリフェニルスルホン膜
, and
高分子形燃料電池
Resource Type:
Presentation
Author:
金 済徳
,
ビンティ ファウジ ファティン バジラ
, and
伊藤 博
Date Uploaded:
28/03/2024
Tailoring photodetection performance of selfpowered Ga2O3 UV solar-blind photodetectors through asymmetric electrodes
Description/Abstract:
Self-powered solar-blind UV detectors are playing an increasingly critical role in the sustainable development of photodetectors with lo...
Keyword:
UV detector
and
gallium oxide
Resource Type:
Article
Author:
Keyun Gu
,
Zilong Zhang
,
Haofei Huang
,
Ke Tang
,
Jian Huang
,
Meiyong Liao
, and
Linjun Wang
Journal:
Journal of Materials Chemistry C
Date Uploaded:
21/03/2024
Oxygen on-site Coulomb energy in Pr1.3−xLa0.7CexCuO4 and Bi2Sr2CaCu2O8+δ and its relation with Heisenberg exchange
Description/Abstract:
We study the electronic structure of electron-doped Pr1.3−x La0.7 Cex CuO4 (PLCCO; Tc = 27 K, x = 0.1) and hole-doped Bi2Sr2CaCu2O8+δ (Bi...
Keyword:
X-ray absorption spectroscopy
,
electronic structure
,
high-Tc superconductor
, and
resonant photoemission spectroscopy
Resource Type:
Article
Author:
A. Chainani
,
M. Horio
,
C.-M. Cheng
,
D. Malterre
,
K. Sheshadri
,
M. Kobayashi
,
K. Horiba
,
H. Kumigashira
,
T. Mizokawa
,
M. Oura
,
M. Taguchi
,
Y. Mori
,
A. Takahashi
,
T. Konno
,
T. Ohgi
,
H. Sato
,
T. Adachi
,
Y. Koike
,
T. Mochiku
,
K. Hirata
,
S. Shin
,
M. K. Wu
, and
A. Fujimori
Journal:
PHYSICAL REVIEW B
Date Uploaded:
21/03/2024
なぜ研究者個人が頼まれもしないのに研究データにdoiを振りたいのか
Description/Abstract:
オープンサイエンスの世界的な動きの一つに、論文発表内容に関連した未発表データのリポジトリへの登録・公開がある。研究データにDOIを振ることができれば、研究者個人レベルでの公開でも外部から発見される道が開かれ、将来の研究のタネを次の世代に引き継ぐことができる。
Keyword:
YouTube
,
doi
,
self-archiving
, and
video data
Resource Type:
Presentation
Author:
轟 眞市
Date Uploaded:
01/02/2023
Date Modified:
20/03/2024
Fiber fuse propagation modes for typical single-mode fibers
Description/Abstract:
The precise measurement of fusing speed revealed that its behavior varies depending on the plasma volume per pump beam diameter. Irregul...
Keyword:
fiber fuse
,
optical fiber
,
propagation modes
, and
void formation
Resource Type:
Poster
Author:
TODOROKI, Shin-ichi
Date Uploaded:
04/02/2023
Date Modified:
20/03/2024
Different Local Structures of Mo and Nb Polyhedra in the Oxide-Ion-Conducting Hexagonal Perovskite-Related Oxide Ba<sub>3</sub>MoNbO<sub>8.5</sub> Revealed by <sup>95</sup>Mo and <sup>93</sup>Nb NMR Measurements
Description/Abstract:
The oxide-ion conductor Ba3MoNbO8.5, the oxide-ion and proton conductor Ba7Nb4MoO20, and their hexagonal perovskite-related oxides are im...
Keyword:
Fuel Cell
,
Gas Sensor
, and
Oxygen Separation
Resource Type:
Article
Author:
Masataka Tansho
,
Atsushi Goto
,
Shinobu Ohki
,
Yuuki Mogami
,
Yuichi Sakuda
,
Yuta Yasui
,
Taito Murakami
,
Kotaro Fujii
,
Takahiro Iijima
, and
Masatomo Yashima
Journal:
The Journal of Physical Chemistry C
Date Uploaded:
04/03/2024
Date Modified:
05/03/2024
骨代謝に完全に取り込まれる柔らかい骨補填材
Description/Abstract:
骨の化学組成とナノ複合構造を模倣したアパタイト/コラーゲンナノ複合体は粘弾性を示し、完全に骨代謝に取り込まれると言う機能を持っている。本稿では既に上市した多孔体に加え、最近の研究開発について解説する。
Keyword:
Bone void fillers
,
Bone-like nanocomposite
,
Collagen
, and
Hydroxyapatite
Resource Type:
Report
Author:
菊池正紀
Journal:
Ceramics Japan
Date Uploaded:
19/03/2024
バイオセラミックス分野における標準化の取り組み 〜ISO提案を中心に
Description/Abstract:
必要充分な生体模倣環境が検討された測定手法がないため,生体活性セラミックスの特性は工業製品に対する評価法で測定されている.本稿ではこれらを考慮した日本の生体活性セラミックスの国際標準化活動を解説する.
Keyword:
Cell migration property
,
Mechanical property
,
Pore structure
,
Porous bioactive ceramics
, and
Solubility
Resource Type:
Article
Author:
菊池正紀
Journal:
Ceramics Japan
Date Uploaded:
19/03/2024
アパタイト系リン酸カルシウム生体材料の高機能化と新展開
Description/Abstract:
リン酸カルシウム系生体材料の高機能化について,結晶面からのアプローチを述べるとともに,ナノ複合材料によるその実現と応用展開を述べた。さらに,現状廃棄物となっている特異形状を持つバイオミネラルの応用について述べる。
Keyword:
Apatite
,
Biomaterial
,
Biomineral
, and
Eco-material
Resource Type:
Article
Author:
菊池 正紀
and
末次 寧
Journal:
Ceramics Japan
Date Uploaded:
19/03/2024
バイオセラミックスの標準化
Description/Abstract:
バイオセラミックスの生体内での機械特性を模倣する標準と、世界初の再生医療の国際標準である生体内での細胞・組織侵入を模倣する標準を中心にISOの外科用埋没材料の作業部会であるTC 150での日本の活動状況について述べた。
Keyword:
Bioceramics
,
Cell migration
,
Implant
, and
Surgery
Resource Type:
Article
Author:
菊池 正紀
Journal:
Ceramics Japan
Date Uploaded:
19/03/2024
Development of novel bone‐like nanocomposite coating of hydroxyapatite/collagen on titanium by modified electrophoretic deposition
Description/Abstract:
This study demonstrated the application of a modified EPD technique utilizing Mg2+ ions to coat a bone-like hydroxyapatite/collagen nano...
Keyword:
Hydroxyapatite/collagen
,
coating
,
electrophoretic deposition
,
implant
, and
orthodontic device
Resource Type:
Article
Author:
Kaori Iwanami‐Kadowaki
,
Tetsuo Uchikoshi
,
Masayoshi Uezono
,
Masanori Kikuchi
, and
Keiji Moriyama
Journal:
Journal of Biomedical Materials Research Part A
Date Uploaded:
19/03/2024
原子論に基づく次世代マイクロマグネティクスによる 保磁力制御法の開発
Description/Abstract:
永久磁石の保磁力の制御は、高いエネルギー変換効率の実現へ向けて重要な課題である。高温で高保磁力化をめざす研究は数多く行われているが、保磁力の起源は依然としてよく分かっていない。本研究は、原子論を基礎とした新しい方法論を用いて、ジスプロシウム置換効果でネオジム磁石が保磁力増強...
Keyword:
atomistic theory
,
coercivity
,
dysprosium substitution
,
microscopic mechanism
,
neodymium magnets
, and
thermal fluctuation
Resource Type:
Report
Author:
西野 正理
,
早坂 太志
, and
宮下精二
Date Uploaded:
19/03/2024
Regulating the trap distribution of ZnGa2O4:Cr3+ by Li+ /Ga3+ doping for upconversion-like trap energy transfer NIR persistent luminescence
Description/Abstract:
ZnGa2O4:Cr3+ persistent luminescent phosphors (PLPs) have been widely applied in bioimaging and photonics due to their ultra-long near-in...
Keyword:
Cr3+
,
NIR luminescence
, and
Persistent luminescence
Resource Type:
Article
Author:
Junqing Xiahou
,
Qi Zhu
,
Fan Li
,
Minghui Jin
,
Lin Zhu
,
Sai Huang
,
Tao Zhang
,
Xudong Sun
, and
Ji-Guang Li
Journal:
Inorganic Chemistry Frontiers
Date Uploaded:
19/03/2024
Identification of Multiple Cs+ Adsorption Sites in a Hydroxy-interlayered Vermiculite-like Layered Silicate through 133Cs MAS NMR Analysis
Description/Abstract:
133Cs magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy revealed two Cs sites in Csadsorbed aluminium altered phlogo...
Keyword:
chemical exchange
,
interlayer wedge
,
mica
, and
phlogopite
Resource Type:
Article
Author:
Masataka Tansho
,
Kenji Tamura
, and
Tadashi Shimizu
Journal:
Chemistry Letters
Date Uploaded:
19/03/2024
Suppression of High Threshold Voltage for Boron-Doped Diamond MOSFETs
Description/Abstract:
In this work, we focus on resolving one of great issues of high threshold voltage (VTH) values for the boron-doped diamond (B-diamond) m...
Keyword:
Boron-doped diamond
Resource Type:
Article
Author:
Jiangwei Liu
,
Tokuyuki Teraji
,
Bo Da
, and
Yasuo Koide
Journal:
IEEE Transactions on Electron Devices
Date Uploaded:
19/03/2024
Thin Membranes using PFSA-Vinylon Intermediate Layer for PEM Fuel Cells
Description/Abstract:
We have developed a PFSA-vinylon laminated ultra-thin membrane, which is easy to handle even for 10 μm or less and can be used for fuel c...
Keyword:
Fuel cells
,
Lamination
,
PFSA
,
PVA
,
Thin membrane
, and
Vinylon
Resource Type:
Poster
Author:
金 済徳
,
Kazuya Yamasaki
, and
Hitoshi Ishimoto
Date Uploaded:
19/03/2024
Atomic position and the chemical state of an active Sn dopant for Sn-doped β-Ga2O3(001)
Description/Abstract:
Snドープ β-Ga2O3(001)のドーパントの原子位置を光電子ホログラフィ法により明らかにした。
Keyword:
Ga2O3
,
b-Ga2O3
, and
dopant
Resource Type:
Article
Author:
Yuhua Tsai
,
Masaaki Kobata
,
Tatsuo Fukuda
,
Hajime Tanida
,
Toru Kobayashi
, and
Yoshiyuki Yamashita
Journal:
Applied Physics Letters
Date Uploaded:
19/03/2024
ミッフィーとベクトルマン
Description/Abstract:
日本人によるプレゼンテーションの欠点の一つに、色使いの下手さが挙げられている。筆者は、小うさぎミッフィーの絵に用いられている特徴的な色のみを使うように心がけている。また、上映資料に書き込む文章はできる限り少なくして、論理の流れの本質を突くイラストを描くようにしている。ベクト...
Keyword:
Presentation skill
Resource Type:
Other
Journal:
マテリアルインテグレーション
Date Uploaded:
05/02/2020
Date Modified:
10/03/2024
Date Created:
28/07/2020
利用性の高い材料データベース構築の仕方
Description/Abstract:
NIMS 無機材料データベースAtomWork-Advを一例として,材料定義と識別の視点から付加価値と利用性の高いデータ収集とデータベース構築の仕方について解説する。
Keyword:
材料データベース、利用性
Resource Type:
Article
Author:
徐 一斌
Journal:
研究開発リーダー
Date Uploaded:
30/05/2023
A Rhombic Dodecahedral Honeycomb Structure with Cation Vacancy Ordering in a !‑Ga2O3 Crystal
Description/Abstract:
Crystal structure of a γ-Ga2O3 layer grown epitaxially on an MgO substrate by a vapor phase transport method was investigated by transmis...
Keyword:
crystal structure
and
gamma-Ga2O3
Resource Type:
Article
Author:
Masanori Mitome
,
Shigemi Kohiki
,
Takuro Nagai
,
Keiji Kurashima
,
Koji Kimoto
, and
Yoshio Bando
Journal:
CRYSTAL GROWTH & DESIGN
Date Uploaded:
05/03/2024
Ionic Liquid Interface as a Cell Scaffold
Description/Abstract:
In sharp contrast to conventional solid/hydrogel platforms, water-immiscible liquids, such as perfluorocarbons and silicones, allow the a...
Keyword:
cell culture
,
gels
,
ionic liquid
,
liquid interface
,
mechanobiology
,
phosphonium
, and
stem cell
Resource Type:
Article
Author:
Takeshi Ueki
,
Koichiro Uto
,
Shota Yamamoto
,
Ryota Tamate
,
Yuji Kamiyama
,
Xiaofang Jia
,
Hidenori Noguchi
,
Kosuke Minami
,
Katsuhiko Ariga
,
Hongxin Wang
, and
Jun Nakanishi
Journal:
Advanced Materials
Date Uploaded:
04/03/2024
Ultrathin specimen preparation by a low energy Ar ion milling method
Description/Abstract:
An ultra low energy ion milling method was used to prepare ultrathin specimen for transmission electron microscope observation. The sampl...
Keyword:
(Zn, Cr) Te
,
Ar-ion milling
,
gamma-Ga2O3
,
low-energy ion beam
,
sample preparation
, and
ultrathin specimen
Resource Type:
Article
Author:
Masanori Mitome
Journal:
MICROSCOPY (JOURNAL OF ELECTRON MICROSCOPY)
Date Uploaded:
04/03/2024
高速重イオン衝突による 固体中に埋め込まれた金属ナノ粒子の楕円化変形(後編)
Description/Abstract:
前編では,固体中に埋め込まれた金属ナノ粒子が十数MeV以上の高速重イオン照射により,楕円形さらにナノロッドに変形する現象について紹介した.そして“変形が起こる/起こらない”の条件が,真空中のナノ粒子モデルや電子励起(非弾性)熱スパイク(i-TS)モデルを用いて,ナノ粒子の融...
Keyword:
metal nanoparticle
,
shape elongation
, and
swift heavy ion
Resource Type:
Article
Author:
雨倉 宏
Journal:
しょうとつ
Date Uploaded:
04/03/2024
高速重イオン衝突による 固体中に埋め込まれた金属ナノ粒子の楕円化変形(前編)
Description/Abstract:
シリカガラスなどの固体中に埋め込まれて形成された金属ナノ粒子に対してエネルギー十数MeV以上の高エネルギー重イオン(高速重イオン)を照射すると,照射前はほぼ球形だったナノ粒子がイオンビームと同方向に伸び,葉巻型の回転楕円体(prolate spheroid)のような形に変形...
Keyword:
metal nanoparticle
,
shape elongation
, and
swift heavy ion
Resource Type:
Article
Author:
雨倉 宏
Journal:
しょうとつ
Date Uploaded:
04/03/2024
Transport of intensity equation method and its applications
Description/Abstract:
A phase retrieval technique based on a transport of intensity equation (TIE) is one of the defocus series reconstruction techniques in mi...
Keyword:
boundary conditions
,
phase retrieval
,
quantitative measurements
, and
transport of intensity equation
Resource Type:
Article
Author:
Masanori Mitome
Journal:
Microscopy
Date Uploaded:
04/03/2024
Deformation microstructures in shock-compressed single crystal and powdered rutile
Description/Abstract:
Shock recovery experiments were performed using a single-stage propellant on single crystals 14 and powdered rutile to investigate the he...
Keyword:
Defect structures
,
Deformation
,
Rutile
, and
Shock recovery experiments
Resource Type:
Article
Author:
Yuhei UMEDA
,
Yuma NAGAI
,
Naotaka TOMIOKA
,
Toshimori SEKINE
,
Masashi MIYAKAWA
,
Takamichi KOBAYASHI
,
Hitoshi YUSA
, and
Takuo OKUCHI
Journal:
Journal of Mineralogical and Petrological Sciences
Date Uploaded:
29/02/2024
Diamond Metal-Oxide-Semiconductor Field-effect Transistors on a Large-area Wafer
Description/Abstract:
Diamond-based devices are suitable for high-power, low power-loss, high-frequency, and high-temperature applications. Most of diamond-bas...
Keyword:
diamond
Resource Type:
ProceedingsArticle
Author:
Jiangwei Liu
,
Hirotaka Ohsato
,
Bo Da
, and
Yasuo Koide
Date Uploaded:
27/02/2024
Quantitative measurement of figure of merit for transverse thermoelectric conversion in Fe/Pt metallic multilayers
Description/Abstract:
This study presents a measurement method for determining the figure of merit for transverse thermoelectric conversion (zT) in thin film f...
Keyword:
anomalous Nernst effect
,
dimensionless figure of merit
,
spin caloritronics
, and
time-domain thermoreflectance
Resource Type:
Article
Author:
Takumi Yamazaki
,
Takamasa Hirai
,
Takashi Yagi
,
Yuichiro Yamashita
,
Ken-ichi Uchida
,
Takeshi Seki
, and
Koki Takanashi
Journal:
Physical Review Applied
Date Uploaded:
26/02/2024
Date Modified:
26/02/2024
Statistical approach based on the Stoner-Wohlfarth model for the switching field in a misoriented magnet array
Description/Abstract:
Stoner‒Wohlfarth model (S‒W model) is used to explain the relationship between the external magnetic field and the magnetization reversal...
Keyword:
FePt granular film
and
Magnetizaition switching
Resource Type:
Article
Author:
Donghyeon Lee
,
Jungmin Park
,
Donghyeon Han
,
Suzuki Ippei
,
Takahashi Yukiko
,
Sujung Noh
,
Jisung Lee
,
JoonHyun Kwon
,
Hansaem Lee
, and
Sanghoon Kim
Journal:
Physical Review Applied
Date Uploaded:
21/02/2024
Improvement of magnetic field detectivity in electrical 1/f noise-dominated tunnel magnetoresistive sensors by AC magnetic field modulation technique
Description/Abstract:
Suppression of 1/f noise in tunnel magnetoresistance (TMR) sensors is a central issue in the realization of magnetic field sensors with u...
Keyword:
1/f noise
,
magnetic sensor
,
noise
, and
tunnel magnetoresistance
Resource Type:
Article
Author:
Tomoya Nakatani
,
Hirofumi Suto
,
Prabhanjan D. Kulkarni
,
Hitoshi Iwasaki
, and
Yuya Sakuraba
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
23/01/2024
Date Modified:
16/02/2024
Direct measurement and verification of cohesive zone model parameters for basalt/PP rods using the transverse tensile test and virtual double cantilever beam test
Description/Abstract:
To further our understanding of failure in thermoplastic-based composite rods, the mode Ⅰ-governed cohesive zone model parameter of a bas...
Keyword:
Cohesion
,
Finite element analysis
,
Tension
, and
Toughness
Resource Type:
Article
Author:
Yuta Tobata
,
Kimiyoshi Naito
, and
Jonathon Tanks
Journal:
POLYMER COMPOSITES
Date Uploaded:
01/12/2023
Date Modified:
15/02/2024
Tethering Organic Disulfides to Layered Silicates: A Versatile Strategy for Photo-Controllable Dynamic Chemistry and Functionalization
Description/Abstract:
The dynamic covalent chemistry of molecular disulfides has been studied extensively in solution, but their reactivity when confined to na...
Keyword:
Disulfide chemistry
,
Layered silicates
, and
Photo-reactivity
Resource Type:
Article
Author:
Jonathon Tanks
,
Takashi Hiroi
,
Kenji Tamura
, and
Kimiyoshi Naito
Journal:
Bulletin of the Chemical Society of Japan
Date Uploaded:
12/12/2023
Date Modified:
15/02/2024
Manipulation of Spin Polarization in Boron-Substituted Graphene Nanoribbons
Description/Abstract:
The design of magnetic topological states due to spin polarization in an extended π carbon system has great potential in spintronics appl...
Keyword:
boron
,
graphene nanoribbons
, and
spin polarization
Resource Type:
Article
Author:
Kewei Sun
,
Orlando J. Silveira
,
Shohei Saito
,
Keisuke Sagisaka
,
Shigehiro Yamaguchi
,
Adam S. Foster
, and
Shigeki Kawai
Journal:
ACS Nano
Date Uploaded:
16/01/2024
Date Modified:
15/02/2024
Publish your joy of research activities through self-archiving
Keyword:
Blog-based research notebook
,
fiber fuse
,
self-archiving
, and
serendipity
Resource Type:
Presentation
Date Uploaded:
05/02/2020
Date Modified:
15/02/2024
研究活動への「思い入れ」を発信するセルフアーカイビング
Description/Abstract:
Peer-Reviewに裏打ちされた学術情報流通メディアだけでは伝えられないものがある。セレンディピティやプレゼンテーション技術に関する読みものは、現役の研究者が語ってこそ、お互いの良い刺激になる。IT技術の普及により誰でも情報発信できる今、魅力的な道具を使いこなさない手は...
Keyword:
Blog-based research notebook
,
fiber fuse
,
self-archiving
, and
serendipity
Resource Type:
Presentation
Date Uploaded:
05/02/2020
Date Modified:
15/02/2024
掴みを取る仕掛け
Description/Abstract:
聴衆の集中力が低下しないうちに、興味深い内容の断片(目を引く写真や新聞記事など)を提示し、続いて話のアウトラインに繋がる様な背景説明をすることで、聴衆を講演者のペースに引き込むことが大事である。
Keyword:
presentation
Resource Type:
Other
Journal:
工業材料
Date Uploaded:
05/02/2020
Date Modified:
15/02/2024
オペランド水素顕微鏡による水素透過の可視化
Description/Abstract:
オペランド水素顕微鏡の開発とそれを用いた金属材料を透過する水素の可視化について、トピックスとして解説を書くよう依頼された。ステンレスの水素透過、局所透過の画像から、結晶粒ごとの水素の拡散係数と透過フラックスの算出、その結果から推測される構造とその中の水素の拡散モデルの提案に...
Keyword:
diffusion model
,
hydrogen permeation
,
hydrogen visualization
, and
stainless steel
Resource Type:
Article
Author:
板倉 明子
and
宮内 直弥
Journal:
金属
Date Uploaded:
14/02/2024
データ時代の材料研究
Description/Abstract:
材料は網羅的なビッグデータ構築が困難であり、実験データの再利用を進めつつ、少量のデータを有効に活用していく手法開発が必要となる。加えて、計算シミュレーションによるデータ創出を活用していくことも重要となる。NIMSにおけるデータ駆動研究の取り組みを紹介するとともに、基盤となる...
Keyword:
データ駆動型
and
材料データプラットフォーム
Resource Type:
Article
Author:
出村 雅彦
Journal:
Kobunshi
Date Uploaded:
24/10/2023
「定比ニオブ酸リチウム・タンタル酸リチウム」に関する研究 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第5号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「ヘテロウルツァイト化合物」 2006 独立行政法人物質・材料研究機構 物質研究所研究報告書第11号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「プラズマプロセス酸化物微粒子合成」に関する研究 2006 独立行政法人物質・材料研究機構 物質研究所研究報告書第12号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「蛍石型酸化物セラミックス」に関する研究 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第6号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「高機能構造用セラミックス」に関する研究 2006 独立行政法人物質・材料研究機構 物質研究所研究報告書第13号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「ルテニウム・チタン基化合物」に関する研究 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第9号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「スズ・チタン酸塩」に関する研究」 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第10号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「酸化亜鉛基化合物」に関する研究 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第8号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「銅族複合カルコゲナイド」に関する研究 2002 独立行政法人物質・材料研究機構 物質研究所研究報告書第2号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「ホウケイ化イットリウム」に関する研究 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第4号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「スーパーダイヤモンド」に関する研究 2003 独立行政法人物質・材料研究機構 物質研究所研究報告書第7号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
「サイアロン」に関する研究 2002 独立行政法人物質・材料研究機構 物質研究所研究報告書第1号
Resource Type:
Report
Date Modified:
28/07/2020
Date Created:
28/07/2020
研究報告集 No18
Resource Type:
Report
Date Uploaded:
05/02/2020
Date Modified:
15/06/2020
Epitaxial lateral overgrowth of r-plane α-Ga2O3 with stripe masks along <-12-10>
Description/Abstract:
We demonstrated the epitaxial lateral overgrowth of (-1012) (r-plane) α-Ga2O3 using striped mask pattern along <-12-10>. α-Ga2O3 st...
Keyword:
ELO
,
HVPE
,
dislocation
, and
α-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Shingo Yagyu
, and
Takashi Shinohe
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
30/01/2024
Date Modified:
01/02/2024
Hydride Vapor Phase Epitaxy and characterization of High-Quality ScN epilayers
Description/Abstract:
ScClxとNH3との反応によるHVPEでScNを育成した。成長速度は、原料分圧の増大に伴って最初は増加するが、やがて減少に転じ、最大成長速度は5um/h程度であった。基板は種々試みたが、サファイア(10-12)と(10-10)を用いたときに単一配向のScN(100)および...
Keyword:
HVPE
and
ScN
Resource Type:
Article
Author:
Yuichi Oshima
,
Encarnación G. Víllora
, and
Kiyoshi Shimamura
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
30/01/2024
Date Modified:
01/02/2024
Epitaxial growth of phase-pure e-Ga2O3 by halide vapor phase epitaxy
Description/Abstract:
The halide vapor phase epitaxy of e-Ga2O3 is demonstrated for the first time. The e-Ga2O3 films are grown on GaN (0001), AlN (0001), and ...
Keyword:
HVPE
,
ε-Ga2O3
, and
κ-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Encarnación G. Víllora
,
Yoshitaka Matsushita
,
Satoshi Yamamoto
, and
Kiyoshi Shimamura
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
30/01/2024
Date Modified:
01/02/2024
Progress and challenges in the development of ultra-wide bandgap semiconductor α-Ga2O3 toward realizing power device applications
Description/Abstract:
パワー、およびUV応用を指向したα型酸化ガリウムの関連技術の現状と技術課題を俯瞰し、今後の展望を述べる。
Keyword:
epitaxy
,
power device
, and
α-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
and
Elaheh Ahmadi
Journal:
APPLIED PHYSICS LETTERS
Date Uploaded:
29/01/2024
Date Modified:
01/02/2024
Materials issues and devices of α- and β-Ga2O3
Description/Abstract:
パワーデバイスに向けたα- および β- Ga2O3の材料およびデバイス開発の最新状況を概観する。
Keyword:
Ga2O3
,
epitaxy
, and
power device
Resource Type:
Article
Author:
Elaheh Ahmadi
and
Yuichi Oshima
Journal:
JOURNAL OF APPLIED PHYSICS
Date Uploaded:
29/01/2024
Date Modified:
01/02/2024
Deformation-Induced Martensitic Transformation at Tensile and Compressive Deformations of High-Carbon Bainitic Steel
Description/Abstract:
Deformation induced martensitic transformation during tensile or compressive deformation of the high-carbon bainitic steel (0.62wt%C-2.02...
Keyword:
bainite
,
compression
,
deformation-induced martensitic transformation
,
high carbon steel
,
in-situ neutron diffraction
,
retained austenite
, and
tension
Resource Type:
Conference Proceeding
Author:
A. Shibata
,
N. Tsuchida
,
S. Harjo
,
T. Inoue
,
T. Kawasaki
,
W. Gong
,
Y. Kimura
, and
R. Ueji
Date Uploaded:
30/01/2024
Date Modified:
31/01/2024
Transport evidence for twin-boundary pinning of superconducting vortices in FeSe
Description/Abstract:
We provide bulk transport evidence for twin-boundary pinning of vortices in FeSe. We measure interlayer resistance in FeSe in magnetic fi...
Keyword:
FeSe
,
iron-based superconductor
,
twin boundary
, and
vortex pinning
Resource Type:
Article
Author:
Taichi Terashima
,
Hideaki Fujii
,
Yoshitaka Matsushita
,
Shinya Uji
,
Yuji Matsuda
,
Takasada Shibauchi
, and
Shigeru Kasahara
Journal:
Physical Review B
Date Uploaded:
31/01/2024
Date Modified:
31/01/2024
Visualization of Alternating Triangular Domains of Charge Density Waves in 2H-NbSe2 by Scanning Tunneling Microscopy
Description/Abstract:
The charge density wave (CDW) state of 2H-NbSe2 features commensurate domains separated by domain boundaries accompanied by phase slips k...
Keyword:
Charge density waves
,
Scanning tunneling microscopy
, and
Transition metal dichalcogenides
Resource Type:
Article
Author:
Shunsuke Yoshizawa
,
Keisuke Sagisaka
, and
Hideaki Sakata
Journal:
Physical Review Letters
Date Uploaded:
31/01/2024
Phonon Lifetime Observation in Epitaxial ScN Film with Inelastic X-Ray Scattering Spectroscopy
Description/Abstract:
Phonon-phonon scattering dominates the thermal properties in nonmetallic materials, and it directly influences device performance in appl...
Keyword:
ScN
and
phonon
Resource Type:
Article
Author:
H. Uchiyama
,
Y. Oshima
,
R. Patterson
,
S. Iwamoto
,
J. Shiomi
, and
K. Shimamura
Journal:
PHYSICAL REVIEW LETTERS
Date Uploaded:
31/01/2024
Halide Vapor Phase Epitaxy 2—Heteroepitaxial Growth of α- and ɛ-Ga2O3
Description/Abstract:
αおよびε酸化ガリウムのHVPE成長について解説する。
Keyword:
Ga2O3
and
HVPE
Resource Type:
Book
Author:
大島祐一
Journal:
Gallium Oxide: Crystal Growth, Materials Properties, and Devices (Springer)
Date Uploaded:
30/01/2024
X線・中性子小角散乱法及び3次元アトムプローブ法による Cu-Ni-Si合金中のδNi2Si析出相の解析
Description/Abstract:
The strength of Cu-Ni-Si alloy can be improved by finely dispersing a Ni-Si-based compound as a precipitate into the Cu parent phase by h...
Keyword:
Corson alloy
,
atom probe tomography
, and
transmission electron microscopy
Resource Type:
Article
Author:
佐々木 宏和
,
秋谷 俊太
,
三原 邦照
,
大場 洋次郎
,
大沼 正人
,
埋橋 淳
, and
大久保 忠勝
Journal:
Journal of Japan Institute of Copper
Date Uploaded:
30/01/2024
Mechanical Properties of Ultra-Thin Nb3Sn Composite Wires
Description/Abstract:
Mechanical properties of such ultra-thin Nb3Sn wires were evaluated to determine the cabling parameters and mechanical analysis of twiste...
Keyword:
fracture strength
,
Nb3Sn
,
Young’s modulus
, and
tensile test
Resource Type:
Article
Author:
Michinaka Sugano
,
Akihiro Kikuchi
,
Hitoshi Kitaguchi
,
Gen Nishijima
, and
Tsuyoshi Yagai
Journal:
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Date Uploaded:
25/01/2024
Date Modified:
30/01/2024
Development of Super Fine Strand Nb3Al Cable for SuperKEKB Superconducting Sextupole Magnet System
Description/Abstract:
Along the beamlines of the SuperKEKB main rings, 218 conventional sextupole magnets are installed, and they are used for tuning the chrom...
Keyword:
Nb3Al
,
SuperKEKB
, and
極細線
Resource Type:
Article
Author:
Norihito Ohuchi
,
Akihiro Kikuchi
,
Masaru Yamamoto
,
Xudong Wang
,
Kiyosumi Tsuchiya
,
Kazuyuki Aoki
,
Yasushi Arimoto
,
Toshiyuki Oki
, and
Zhanguo Zong
Journal:
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Date Uploaded:
25/01/2024
Date Modified:
30/01/2024
Superconducting Properties of a Nb3Sn Bundle Cable Made of Ultra-Fine Wires
Description/Abstract:
We have been developing A15 cables made of ultra-fine wires for high-field superconducting magnets using react-and-wind (R&W) technology....
Keyword:
Nb3Sn
,
Superconducting Properties
, and
Ultra-Fine Wires
Resource Type:
Article
Author:
Xudong Wang
,
Kiyosumi Tsuchiya
,
Akio Terashima
,
Yasuo Iijima
, and
Akihiro Kikuchi
Journal:
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Date Uploaded:
25/01/2024
Date Modified:
30/01/2024
Anomalous Hall effect in the magnetic Weyl semimetal NdAlGe with plateaus observed at low temperatures
Description/Abstract:
In the RAl(Si,Ge) (R: lanthanides) family, both spatial inversion and time-reversal symmetries are broken. This may offer opportunities t...
Keyword:
Anomalous Hall effect, Topological material
Resource Type:
Article
Author:
Naoki Kikugawa
,
Shinya Uji
, and
Taichi Terashima
Journal:
PHYSICAL REVIEW B
Date Uploaded:
26/01/2024
Strain‐Sensitive On‐Surface Ladderization by Non‐Dehydrogenative Heterocyclization
Description/Abstract:
On-surface cyclodehydrogenation recently became an important reaction to planarize π-conjugated molecules and oligomers. However, the hig...
Keyword:
non‐dehydrogenative heterocyclization
,
on-surface ladderization
, and
strain-sensitive
Resource Type:
Article
Author:
Yujing Ma
,
Kazuma Sugawara
,
Yusuke Ishigaki
,
Kewei Sun
,
Takanori Suzuki
, and
Shigeki Kawai
Journal:
Chemistry – A European Journal
Date Uploaded:
25/01/2024
Self-aligned patterning on β-Ga2O3 substrates via backside-exposure photolithography
Description/Abstract:
β-Ga2O3 has not been patterned using backside-exposure lithography, despite its high potential applications in future power electronics a...
Keyword:
Ga2O3
and
lithography
Resource Type:
Article
Author:
Takayoshi Oshima
Journal:
JAPANESE JOURNAL OF APPLIED PHYSICS
Date Uploaded:
17/01/2024
Date Modified:
24/01/2024
Composition determination of beta-(AlxGa1-x)2O3 layers coherently grown on (010) beta-Ga2O3 substrates by high-resolution x-ray diffraction
Description/Abstract:
We demonstrate x-ray diffraction based composition estimation of b-(AlxGa1-x)2O3 coherently grown on (010) b-Ga2O3. The relation between ...
Keyword:
atom probe
,
composition
, and
β-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Elaheh Ahmadi
,
Stefan C. Badescu
,
Feng Wu
, and
James S. Speck
Journal:
APPLIED PHYSICS EXPRESS
Date Uploaded:
11/01/2024
Date Modified:
24/01/2024
Halide Vapor Phase Epitaxy of twin-free a-Ga2O3 on sapphire (0001) substrates
Description/Abstract:
The halide vapor phase epitaxy of a-Ga2O3 is demonstrated for the first time. The films are twin-free, heteroepitaxially grown on sapphir...
Keyword:
HVPE
and
α-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Encarnación G. Víllora
, and
Kiyoshi Shimamura
Journal:
APPLIED PHYSICS EXPRESS
Date Uploaded:
22/01/2024
Date Modified:
22/01/2024
In-plane orientation control of (001) κ-Ga2O3 by epitaxial lateral overgrowth through a geometrical natural selection mechanism
Description/Abstract:
The present work demonstrates a new technique to solve the in-plane rotational domain problem. In the technique, κ-Ga2O3 was grown by epi...
Keyword:
ELO
,
HVPE
,
domain
,
ε-Ga2O3
, and
κ-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Katsuaki Kawara
,
Takayoshi Oshima
, and
Takashi Shinohe
Journal:
JAPANESE JOURNAL OF APPLIED PHYSICS
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
Elimination of threading dislocations in α-Ga2O3 by double layered epitaxial lateral overgrowth
Description/Abstract:
We demonstrated the double layered epitaxial lateral overgrowth (ELO) of α-Ga2O3 by halide vapor phase epitaxy. Patterned masks were prep...
Keyword:
ELO
,
dislocation
, and
α-Ga2O3
Resource Type:
Article
Author:
Katsuaki Kawara
,
Yuichi Oshima
,
Mitsuru Okigawa
, and
Takashi Shinohe
Journal:
Applied Physics Express
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
Rapid growth of α-Ga2O3 by HCl-boosted halide vapor phase epitaxy and effect of precursor supply conditions on crystal properties
Description/Abstract:
We investigated the effect of supply conditions of GaCl, O2, and additional HCl on the growth rate of (0001) alpha-Ga2O3 by halide vapor ...
Keyword:
HVPE
and
α-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Katsuaki Kawara
,
Takayoshi Oshima
,
Mitsuru Okigawa
, and
Takashi Shinohe
Journal:
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
Phase-controlled epitaxial lateral overgrowth of α-Ga2O3 by halide vapor phase epitaxy
Description/Abstract:
We investigated the effect of mask materials on the epitaxial lateral overgrowth (ELO) characteristics of alpha-Ga2O3 and developed an EL...
Keyword:
ELO
,
HVPE
, and
α-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Katsuaki Kawara
,
Takayoshi Oshima
,
Mitsuru Okigawa
, and
Takashi Shinohe
Journal:
JAPANESE JOURNAL OF APPLIED PHYSICS
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
Growth and etching characteristics of (001) β- Ga2O3 by plasma-assisted molecular beam epitaxy
Description/Abstract:
We investigated the growth characteristics of homoepitaxial (001) b-Ga2O3 by plasma-assisted molecular beam epitaxy.
Keyword:
MBE
and
β-Ga2O3
Resource Type:
Article
Author:
Yuichi Oshima
,
Elaheh Ahmadi
,
Stephen Kaun
,
Feng Wu
, and
James S Speck
Journal:
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
Date Uploaded:
22/01/2024
Date Modified:
23/01/2024
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