Magnetic field insensitivity of magnetic domain wall velocity induced by electrical current in Co/Ni nanowire

T. Koyama, D. Chiba, K. Ueda, H. Tanigawa, Shunsuke Fukami, T. Suzuki, N. Ohshima, N. Ishiwata, Y. Nakatani, T. Ono

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

We have investigated the velocity of magnetic domain wall (DW) motion induced by electric currents in a Co/Ni nanowire with a perpendicular magnetic anisotropy. The DW velocity increased as current density increased and the maximum velocity of 60 m/s was observed. Furthermore, the DW velocity was found to be almost independent of external perpendicular magnetic fields in the range of -50 to +50Oe. The mechanism of the observed field insensitivity of the current induced DW motion is also discussed.

Original languageEnglish
Article number192509
JournalApplied Physics Letters
Volume98
Issue number19
DOIs
Publication statusPublished - 2011 May 9
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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