Control of Domain Wall Position by Electrical Current in Structured Co/Ni Wire with Perpendicular Magnetic Anisotropy

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

arxiv: 0809.0047 · v1 · pith:5OVT4FPNnew · submitted 2008-08-30 · ❄️ cond-mat.mtrl-sci · cond-mat.other

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

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Teruo Ono

This is my paper

classification ❄️ cond-mat.mtrl-sci cond-mat.other

keywords magneticpositionwireanisotropycontrolcurrentdomainnotch

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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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