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Negative spin polarization of Mn2VGa Heusler alloy thin films studied in current-perpendicular-to-plane giant magnetoresistance devices
Description/Abstract:
Magnetic materials with high negative spin polarization have been sought as a building block to increase the design freedom and performan...
Keyword:
Heusler alloys
,
Magnetic material
,
Magnetic recording
,
Magnetoresistance
, and
Spintronics
Resource Type:
Article
Author:
Hirofumi Suto
,
Vineet Barwal
,
Kodchakorn Simalaotao
,
Zehao Li
,
Keisuke Masuda
,
Taisuke Sasaki
,
Yoshio Miura
, and
Yuya Sakuraba
Journal:
Journal of Applied Physics
Date Uploaded:
20/12/2024
Unconventional parametric spin-wave pumping in single-crystal iron films
Description/Abstract:
Spin waves hold promise for expanding the magnonics research field to include quantum information processing and classical information de...
Keyword:
Spin wave
and
Spintronics
Resource Type:
Article
Author:
Shoki Nezu
,
Thomas Scheike
,
Hiroaki Sukegawa
, and
Koji Sekiguchi
Journal:
Physical Review B
Date Uploaded:
19/09/2024
Magnetic and magneto-transport properties of non-collinear antiferromagnetic Mn3Ge epitaxial films
Description/Abstract:
Antiferromagnetic Mn3X (X = Sn, Ge, Ga, and Pt) possessing non-collinear spin structures with Kagome lattices have attracted increasing i...
Keyword:
Anomalous Hall effect
,
Antiferromagnets
, and
Spintronics
Resource Type:
Article
Author:
Yutaro Takeuchi
,
Hossein Sepehri-Amin
,
Satoshi Sugimoto
,
Takanobu Hiroto
, and
Shinya Kasai
Journal:
APL Materials
Date Uploaded:
17/07/2024
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
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