Spin torques due to diffusive spin current in magnetic texture

Kazuhiro Hosono; Junya Shibata; Hiroshi Kohno; Yukio Nozaki

doi:10.1103/PhysRevB.87.094404

Spin torques due to diffusive spin current in magnetic texture

Kazuhiro Hosono, Junya Shibata, Hiroshi Kohno, Yukio Nozaki

Department of Physics

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3 Citations (Scopus)

Abstract

We present a microscopic theory of spin torque due to diffusive spin currents induced by spin accumulation. The obtained expression is a natural extension of the existing one due to "local" spin currents associated with ordinary electric currents, and is the reciprocal of the spin motive force which induces charge accumulation as studied recently. The result is applied to a domain wall motion in a nonlocal spin injection system, and the torque and force due to diffusive spin current are evaluated.

Original language	English
Article number	094404
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.87.094404
Publication status	Published - 2013 Mar 5

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.87.094404

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AU - Hosono, Kazuhiro

AU - Shibata, Junya

AU - Kohno, Hiroshi

AU - Nozaki, Yukio

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N2 - We present a microscopic theory of spin torque due to diffusive spin currents induced by spin accumulation. The obtained expression is a natural extension of the existing one due to "local" spin currents associated with ordinary electric currents, and is the reciprocal of the spin motive force which induces charge accumulation as studied recently. The result is applied to a domain wall motion in a nonlocal spin injection system, and the torque and force due to diffusive spin current are evaluated.

AB - We present a microscopic theory of spin torque due to diffusive spin currents induced by spin accumulation. The obtained expression is a natural extension of the existing one due to "local" spin currents associated with ordinary electric currents, and is the reciprocal of the spin motive force which induces charge accumulation as studied recently. The result is applied to a domain wall motion in a nonlocal spin injection system, and the torque and force due to diffusive spin current are evaluated.

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Spin torques due to diffusive spin current in magnetic texture

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