Control of domain wall position by electrical current in structured Co/Ni wire with perpendicular magnetic anisotropy

Tomohiro Koyama, Gen Yamada, Hironobu Tanigawa, Shinya Kasai, Norikazu Ohshima, Shunsuke Fukami, Nobuyuki Ishiwata, Yoshinobu Nakatani, Teruo Ono

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

We report the direct observation of the current-driven domain wall (DW) motion by magnetic force microscopy in a structured Co/Ni wire with perpendicular magnetic anisotropy. The wire has notches to define the DW position. It is demonstrated that single current pulses can precisely control the DW position from notch to notch with high DW velocity of 40 m/s.

Original languageEnglish
Pages (from-to)1013031-1013033
Number of pages3
JournalApplied Physics Express
Volume1
Issue number10
DOIs
Publication statusPublished - 2008 Oct 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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