Current-induced magnetic domain wall motion in Co/Ni nanowire at low temperature

  • Ueda K
  • Koyama T
  • Chiba D
 et al. 
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Abstract

Appl. Phys. Express 4 (2011) 063003 (3 pages) |Previous Article| |Next Article| |Table of Contents| Current-Induced Magnetic Domain Wall Motion in Co/Ni Nanowire at Low Temperature Kohei Ueda1, Tomohiro Koyama1, Daichi Chiba1,2, Kazutoshi Shimamura1, Hironobu Tanigawa3, Shunsuke Fukami3, Tetsuhiro Suzuki3, Norikazu Ohshima3, Nobuyuki Ishiwata3, Yoshinobu Nakatani4, and Teruo Ono1 1Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan 2PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 322-0012, Japan 3NEC Corporation, Sagamihara, Kanagawa 252-5298, Japan 4University of Electro-communications, Chofu, Tokyo 182-8585, Japan (Received April 15, 2011; accepted May 4, 2011; published online May 25, 2011) Magnetic domain wall (DW) motion induced by currents in a perpendicularly magnetized Co/Ni nanowire has been investigated both at room temperature and low temperature. The threshold current density was almost independent of temperature, although the external magnetic field to depin a DW was doubled at low temperature. The result is consistent with the theory based on the adiabatic spin transfer model. ©2011 The Japan Society of Applied Physics URL: http://apex.jsap.jp/link?APEX/4/063003/ DOI: 10.1143/APEX.4.063003 PACS: 81.07.Cf, 81.05.Bx, 75.70.Kw, 75.76.+j, 81.15.Cd

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Authors

  • Kohei Ueda

  • Tomohiro Koyama

  • Daichi Chiba

  • Kazutoshi Shimamura

  • Hironobu Tanigawa

  • Shunsuke Fukami

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