Current-Induced Magnetic Domain Wall Motion in a Co/Ni Nanowire with Structural Inversion Asymmetry
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概要
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The authors have investigated the current-induced magnetic domain wall (DW) motion in perpendicularly magnetized Co/Ni nanowire with structural inversion asymmetry (SIA). In this system, DW motion to the direction of electric current flow, not electron flow, and high DW velocity up to 110 m/s were confirmed, which have never been observed in Co/Ni systems without SIA. In addition, we found that the DW velocity showed a strong dependence on the perpendicular magnetic field in the range of \pm 100 Oe. These results suggest that DW in the Co/Ni nanowire with SIA moves in the steady mode, not in the precessional mode.
- 2013-03-25
著者
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NAKATANI Yoshinobu
University of Electro-Communications
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Ono Teruo
Institute For Chemical Research Kyoto University
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Suzuki Tetsuhiro
Renesas Electronics Corporation, 1120 Shimokuzawa, Chuo, Sagamihara 252-5298, Japan
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Tanigawa Hironobu
Renesas Electronics Corporation, 1120 Shimokuzawa, Chuo, Sagamihara 252-5298, Japan
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Koyama Tomohiro
Institute For Chemical Research Kyoto University
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Chiba Daichi
Institute For Chemical Research Kyoto University
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Chiba Daichi
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Moriyama Takahiro
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Hata Hiroshi
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Kim Kab-Jin
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Tanigawa Hironobu
Renesas Electronics Corporation, Sagamihara 252-5298, Japan
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Suzuki Tetsuhiro
Renesas Electronics Corporation, Sagamihara 252-5298, Japan
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Kim Kab-Jin
Institute for Chemical Research, Kyoto University
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HATA Hiroshi
Institute for Chemical Research, Kyoto University
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TANIGAWA Hironobu
Renesas Electronics Corporation
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MORIYAMA Takahiro
Institute for Chemical Research, Kyoto University
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