Spin-orbit torque induced magnetization switching for an ultrathin MnGa/Co2MnSi bilayer

Jono, Kohey; Shimohashi, Fumiaki; Yamanouchi, Michihiko et al.

AIP Advances, 2021, 11(2), 025205

Permalink : https://hdl.handle.net/2115/81338

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https://doi.org/10.1063/5.0032732     33

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アクセス権
open access
URI
https://hdl.handle.net/2115/81338
タイトル
Spin-orbit torque induced magnetization switching for an ultrathin MnGa/Co2MnSi bilayer
著者
Jono, Kohey ; Shimohashi, Fumiaki ; Yamanouchi, Michihiko ; Uemura, Tetsuya
著者名
Jono, Kohey
著者名
Shimohashi, Fumiaki
e-Rad_Researcher
40590899
著者名
Yamanouchi, Michihiko
e-Rad_Researcher
20344476
著者名
Uemura, Tetsuya
言語
英語
発行日
2021-02-01
出版者
American Institute of Physics (AIP)
収録物名
AIP Advances
巻(号)
11(2)
ページ
025205
抄録
We investigated spin-orbit torque (SOT) induced magnetization switching and SOT efficiency for Mn1.8Ga1.0 (MnGa) single layers and MnGa/Co2MnSi (CMS) bilayers. Magnetization measurements showed that ultrathin MnGa and CMS were antiferromagnetically coupled to each other with clear perpendicular magnetization. SOT-induced magnetization switching was observed for both MnGa/CMS/Ta and MnGa/Ta stacks, and the switching current was reduced by a half in the MnGa/CMS/Ta stack. Examination of SOT acting on the domain walls revealed that the effective magnetic field originating from the SOT was approximately five times stronger in the MnGa/CMS/Ta stack than in the MnGa/Ta stack. These results indicate that the MnGa/CMS bilayer structure is effective in enhancing the efficiency of SOT generation.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
権利情報
Creative Commons Attribution 4.0 International
権利情報
Tetsuya Uemura, AIP Advances 11, 025205 (2021); licensed under a Creative Commons Attribution (CC BY) license.
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1063/5.0032732