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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
高信頼性材料実現を目指す粉体成形・焼結中の不均質構造の放射光X線トモグラ フィー解析
Description/Abstract:
最近,広視野で低解像度のマイクロCT と,狭視野で高解像度である位相差高エネルギーX 線ナノCT からなるマルチスケールX 線CT が大型放射光施設SPring-8 の竹内らによって開発された.このマルチスケールCT システムは,亀裂開口変位(COD)が非常に小さい亀裂状...
Keyword:
Sintering, Heterogeneity, Microstructure, Defect, 3D tomography
Resource Type:
Article
Author:
大熊 学
Journal:
協会誌「セラミックス」(CERAMICS JAPAN)
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
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
膜型表面応力センサを用いたニオイセンサの開発とその社会実装に向けた取り組み・展望
Description/Abstract:
嗅覚は人間の五感の一つであり、嗅覚により我々はニオイから様々な情報を得ている。したがって、人間の鼻に代わってニオイを検知できるセンサがあれば、様々な産業分野において、作業の自動化や機械化が実現したり、これまでにない新しい製品やサービスの提供が可能になったりすることが期待され...
Keyword:
嗅覚センサ
and
車載
Resource Type:
Article
Author:
今村 岳
Journal:
車載テクノロジー
Date Uploaded:
08/05/2024
接着継手の疲労き裂進展特性について
Description/Abstract:
接着剤を用いた接合構造物の破壊や寿命は,大部分が接着接合部でのき裂の発生や進展に支配されている。本解説では,種類の異なる市販および開発接着剤と鋼被着体を用いた接着継手の疲労き裂進展特性を示す。き裂を考慮した接着継手として,モードI荷重下となる二重片持ち梁試験片を用いた。試験...
Keyword:
adhesive bonded joints
,
double cantilever beam
,
fatigue crack growth Properties
,
fracture mechanics
, and
mode-I
Resource Type:
Article
Author:
内藤 公喜
Journal:
日本接着学会誌
Date Uploaded:
07/05/2024
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
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
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