2015年3月
Temperature dependence of current-induced magnetic domain wall motion in an asymmetric Co/Ni nanowire
JAPANESE JOURNAL OF APPLIED PHYSICS
- ,
- ,
- ,
- ,
- ,
- ,
- 巻
- 54
- 号
- 3
- 開始ページ
- 1
- 終了ページ
- 38004
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7567/JJAP.54.038004
- 出版者・発行元
- IOP PUBLISHING LTD
We have investigated the temperature dependence of current-induced magnetic domain wall (DW) motion in a Co/Ni nanowire, where the spin Hall torque is responsible for the DW motion. The threshold current density (J(th)) for DW motion is found to be dependent on the temperature T and the depinning magnetic field H-dep, which is different from the symmetric Co/Ni system where J(th) is insensitive to T and H-dep. This result indicates that an extrinsic pinning governs the DW motion when it is driven by the spin Hall torque. Our work therefore suggests that reducing the extrinsic pinning is a key for achieving a low-power-consumption device. (C) 2015 The Japan Society of Applied Physics
- リンク情報
-
- DOI
- https://doi.org/10.7567/JJAP.54.038004
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201502266072332953
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000352792200072&DestApp=WOS_CPL
- URL
- http://orcid.org/0000-0001-7071-0823
- ID情報
-
- DOI : 10.7567/JJAP.54.038004
- ISSN : 0021-4922
- eISSN : 1347-4065
- J-Global ID : 201502266072332953
- ORCIDのPut Code : 44610345
- Web of Science ID : WOS:000352792200072