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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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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National Institute for Materials Science
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