Threshold Current of Domain Wall Motion under Extrinsic Pinning, β-Term and Non-Adiabaticity(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
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Threshold current of domain wall motion under spin-polarized electric current in ferromagnets is theoretically studied based on the equation of motion of a wall in terms of collective coordinates. Effects of non-adiabaticity and a so-called β-term in Landau-Lifshitz equation, which are described by the same term in the equation of motion of a wall, are taken into account as well as extrinsic pinning. It is demonstrated that there are four different regimes characterized by different dependence of threshold on extrinsic pinning, hard-axis magnetic anisotropy, non-adiabaticity and β.
- 社団法人日本物理学会の論文
- 2006-06-15
著者
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Tatara Gen
Graduate School Of Science And Engineering Tokyo Metropolitan University:presto Jst
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KOHNO Hiroshi
Graduate School of Engineering Science, Osaka University
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SHIBATA Junya
Frontier Research System (FRS), The Institute of Physical and Chemical Research (RIKEN)
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Nakatani Yoshinobu
Department Of Computer Science University Of Electro-communications
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Nakatani Yoshinobu
Department Of Computer Science The University Of Electro-communications
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Nakatani Yoshinobu
Department Of Computer Science And Information Mathematics University Of Electro-communications
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Kohno Hiroshi
Graduate School Of Engineering Science Osaka University
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TAKAYAMA Toshihiko
Graduate School of Science, Tokyo Metropolitan University
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FUKUYAMA Hidetoshi
International Frontier Center for Advanced Materials, Institute for Materials Research, Tohoku Unive
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Fukuyama Hidetoshi
International Frontier Center For Advanced Materials Institute For Materials Research Tohoku Univers
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Takayama Toshihiko
Graduate School Of Science Tokyo Metropolitan University
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Tatara Gen
Graduate School Of Science And Engineering Tokyo Metropolitan University:presto Japan Science And Te
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TATARA Gen
Graduate School of Science, Tokyo Metropolitan University:PRESTO, JST
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