Domain Wall Motion Induced by Electric Current in a Perpendicularly Magnetized Co/Ni Nano-Wire

Hironobu Tanigawa; Tomohiro Koyama; Gen YAMADA; Daichi Chiba; S. Kasai; Shunsuke Fukami; Tetsuhiro Suzuki; Norikazu Ohshima; N. Ishiwata; Y. Nakatani; Teruo Ono

doi:10.1143/apex.2.053002

JOURNAL ARTICLE

Domain Wall Motion Induced by Electric Current in a Perpendicularly Magnetized Co/Ni Nano-Wire

Hironobu Tanigawa Tomohiro Koyama Gen YAMADA Daichi Chiba S. Kasai Shunsuke Fukami Tetsuhiro Suzuki Norikazu Ohshima N. Ishiwata Y. Nakatani Teruo Ono

Year: 2009 Journal: Applied Physics Express Vol: 2 Pages: 053002-053002 Publisher: Institute of Physics

DOI: 10.1143/apex.2.053002

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Abstract

The authors show experimental results on domain wall motion induced by electric current in a Co/Ni nano-wire with perpendicular magnetic anisotropy. The motion was detected electrically by using the anomalous Hall effect. Threshold current density for the domain wall motion was found to decrease with decreasing the wire width, where the minimum threshold current density of approximately 5×1011 A/m2 was observed for the wire width of 70 nm.

Keywords:

Perpendicular Domain wall (magnetism) Condensed matter physics Current (fluid) Current density Electric current Anisotropy Motion (physics) Materials science Physics Magnetic domain Magnetic field Optics Geometry Classical mechanics Magnetization Mathematics

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Magnetic properties of thin films

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Magnetic Properties and Applications

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Quantum and electron transport phenomena

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Domain Wall Motion Induced by Electric Current in a Perpendicularly Magnetized Co/Ni Nano-Wire

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