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

doi:10.1143/APEX.1.101303

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 journal › Article › peer-review

61 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 language	English
Pages (from-to)	1013031-1013033
Number of pages	3
Journal	Applied Physics Express
Volume	1
Issue number	10
DOIs	https://doi.org/10.1143/APEX.1.101303
Publication status	Published - 2008 Oct
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/APEX.1.101303

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Control of domain wall position by electrical current in structured Co/Ni wire with perpendicular magnetic anisotropy. / Koyama, Tomohiro; Yamada, Gen; Tanigawa, Hironobu; Kasai, Shinya; Ohshima, Norikazu; Fukami, Shunsuke; Ishiwata, Nobuyuki; Nakatani, Yoshinobu; Ono, Teruo.

In: Applied Physics Express, Vol. 1, No. 10, 10.2008, p. 1013031-1013033.

Research output: Contribution to journal › Article › peer-review

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AU - Fukami, Shunsuke

AU - Ishiwata, Nobuyuki

AU - Nakatani, Yoshinobu

AU - Ono, Teruo

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AB - 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.

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

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