Spin torque and force due to current for general spin textures

Gen Tatara; Hiroshi Kohno; Junya Shibata; Yann Lemaho; Kyung Jin Lee

doi:10.1143/JPSJ.76.054707

Spin torque and force due to current for general spin textures

Gen Tatara, Hiroshi Kohno, Junya Shibata, Yann Lemaho, Kyung Jin Lee

Department of Materials Science and Engineering

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

80 Citations (Scopus)

Abstract

The nonadiabatic correction to spin transfer torque arising from fast-varying spin texture is calculated treating the conductions electron fully quantum mechanically. The torque is nonlocal in space, and is shown to be equivalent to a force (due to momentum transfer) acting on the center of mass of the texture. Another kind of force exists in the adiabatic regime, and it is identified to be of topological origin. These forces are shown to be the counter-reactions of electric transport properties, resistivity and the Hall effect.

Original language	English
Article number	054707
Journal	Journal of the Physical Society of Japan
Volume	76
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.76.054707
Publication status	Published - 2007 May

Keywords

Berry phase
Domain wall
MRAM
Magnetoresistance
Spin torque
Threshold current

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.76.054707

Cite this

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abstract = "The nonadiabatic correction to spin transfer torque arising from fast-varying spin texture is calculated treating the conductions electron fully quantum mechanically. The torque is nonlocal in space, and is shown to be equivalent to a force (due to momentum transfer) acting on the center of mass of the texture. Another kind of force exists in the adiabatic regime, and it is identified to be of topological origin. These forces are shown to be the counter-reactions of electric transport properties, resistivity and the Hall effect.",

keywords = "Berry phase, Domain wall, MRAM, Magnetoresistance, Spin torque, Threshold current",

author = "Gen Tatara and Hiroshi Kohno and Junya Shibata and Yann Lemaho and Lee, {Kyung Jin}",

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language = "English",

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AU - Tatara, Gen

AU - Kohno, Hiroshi

AU - Shibata, Junya

AU - Lemaho, Yann

AU - Lee, Kyung Jin

PY - 2007/5

Y1 - 2007/5

N2 - The nonadiabatic correction to spin transfer torque arising from fast-varying spin texture is calculated treating the conductions electron fully quantum mechanically. The torque is nonlocal in space, and is shown to be equivalent to a force (due to momentum transfer) acting on the center of mass of the texture. Another kind of force exists in the adiabatic regime, and it is identified to be of topological origin. These forces are shown to be the counter-reactions of electric transport properties, resistivity and the Hall effect.

AB - The nonadiabatic correction to spin transfer torque arising from fast-varying spin texture is calculated treating the conductions electron fully quantum mechanically. The torque is nonlocal in space, and is shown to be equivalent to a force (due to momentum transfer) acting on the center of mass of the texture. Another kind of force exists in the adiabatic regime, and it is identified to be of topological origin. These forces are shown to be the counter-reactions of electric transport properties, resistivity and the Hall effect.

KW - Berry phase

KW - Domain wall

KW - MRAM

KW - Magnetoresistance

KW - Spin torque

KW - Threshold current

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JF - Journal of the Physical Society of Japan

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Spin torque and force due to current for general spin textures

Abstract

Keywords

ASJC Scopus subject areas

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