Modulation of magnetization dynamics in an epitaxial Heusler ferromagnet due to pure spin current in a laterally configured structure

被引：1

作者：

Oki, Soichiro ^{[1
,2
]}

Sasaki, Yuta ^{[3
,4
]}

Kasatani, Yuichi ^{[5
]}

Yamada, Shinya ^{[1
,2
]}

Mizukami, Shigemi ^{[4
,6
]}

Nozaki, Yukio ^{[5
,7
]}

Hamaya, Kohei ^{[1
,2
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Syst Innovat, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan

[2] Osaka Univ, Grad Sch Engn Sci, Ctr Spintron Res Network, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan

[3] Tohoku Univ, Dept Appl Phys, Sendai, Miyagi 9808577, Japan

[4] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

[5] Keio Univ, Dept Phys, Yokohama, Kanagawa 2238522, Japan

[6] Tohoku Univ, Ctr Spintron Res Network, Sendai, Miyagi 9808577, Japan

[7] Keio Univ, Ctr Spintron Res Network, Yokohama, Kanagawa 2238522, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 25期

基金：

日本学术振兴会;

关键词：

Heusler alloys; pure spin current; spintronics; damping constant; EXCITATION; INJECTION;

D O I：

10.1088/1361-648X/aac400

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Using a laterally configured structure, we demonstrate modulation of the magnetization dynamics of an epitaxial Heusler ferromagnet, Fe3Si, by nonlocally injecting pure spin currents. From the ferromagnetic resonance signals, the effective Gilbert damping constant (alpha(eff)) of the epitaxial Fe3Si nanomagnet is estimated to be similar to 0.003 at room temperature. By using the lateral and nonlocal spin injection, the alpha(eff) value of the epitaxial Fe3Si nanomagnet can be modulated from 0.0034 to 0.0024. This study will open a way for control of the magnetization dynamics of high-performance ferromagnetic Heusler alloys due to pure spin currents even in laterally configured structures.

引用

页数：5

共 6 条

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Woltersdorf, G.
Mosendz, O.
Heinrich, B.
Back, C. H.
PHYSICAL REVIEW LETTERS, 2007, 99 (24)
[2] The influence of a current on the magnetization dynamics in a ferromagnet-antiferromagnet structure: Simulation
Yu. V. Gulyaev
P. E. Zil’berman
E. M. Epshtein
Journal of Communications Technology and Electronics, 2012, 57 : 506 - 511
[3] The influence of a current on the magnetization dynamics in a ferromagnet-antiferromagnet structure: Simulation
Gulyaev, Yu. V.
Zil'berman, P. E.
Epshtein, E. M.
JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS, 2012, 57 (05) : 506 - 511
[4] Spin-Current Manipulation of Photo-Induced Magnetization Dynamics in Heavy Metal/Ferromagnet Double Layer-Based Nanostructures
Wittrock, Steffen
Meyer, Dennis
Mueller, Markus
Ulrichs, Henning
Walowski, Jakob
Mansurova, Maria
Martens, Ulrike
Muenzenberg, Markus
IEEE TRANSACTIONS ON MAGNETICS, 2017, 53 (11)
[5] Micromagnetic simulation of current-induced magnetization dynamics in a half-Heusler Co1.5Fe1.5Ge alloy spin-valve nanopillar
Belrhazi, Hamza
El Hafidi, Moulay Youssef
El Hafidi, Mohamed
SN APPLIED SCIENCES, 2019, 1 (01):
[6] Micromagnetic simulation of current-induced magnetization dynamics in a half-Heusler Co1.5Fe1.5Ge alloy spin-valve nanopillar
Hamza Belrhazi
Moulay Youssef El Hafidi
Mohamed El Hafidi
SN Applied Sciences, 2019, 1

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