論文

査読有り
2016年9月

Controlling magnetic domain wall positions with an external magnetic field and a low spin-polarized current in chamfered L-shaped ferromagnetic thin ribbons

JOURNAL OF PHYSICS D-APPLIED PHYSICS
  • Syuta Honda
  • ,
  • Daiki Yamamoto
  • ,
  • Tomokatsu Ohsawa
  • ,
  • Toshiki Gushi
  • ,
  • Keita Ito
  • ,
  • Takashi Suemasu

49
38
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1088/0022-3727/49/38/385002
出版者・発行元
IOP PUBLISHING LTD

Current-induced magnetic domain wall (DW) motion in ferromagnetic ribbons is utilized in spintronic devices. The direction of the motion changes in response to the sign of the spin-polarizability of the current through the ribbon. The DW motion is expected to measure the sign. In this study, we investigate the magnetic structures of chamfered L-shaped nano-ribbons using micro-magnetic simulations, and show that the position at which the DW is produced can be controlled by applying an external magnetic field with a low spin-polarized current (SPC). In particular, we use the material parameters of Fe4N and permalloy to simulate the magnetic structure of the ribbon. The DW can be produced at either of two locations in a chamfered corner of the ribbon, and disappears upon applying an external magnetic field. From this point, after the field is removed, a new DW is produced at either of two locations, and its position can be controlled by adjusting the low SPC.

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.1088/0022-3727/49/38/385002
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000384095900003&DestApp=WOS_CPL

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