Mechanisms of spin-polarized current-driven magnetization switching

Details Mechanisms of spin-polarized current-driven magnetization switching Mechanisms of spin-polarized current-driven magnetization switching

2002-02-21

arxiv.org/abs/cond-mat/0202363v1

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevLett.88.236601

The mechanisms of the magnetization switching of magnetic multilayers driven by a current are studied by including exchange interaction between local moments and spin accumulation of conduction electrons. It is found that this exchange interaction leads to two additional terms in the Landau-Lifshitz-Gilbert equation: an effective field and a spin torque. Both terms are proportional to the transverse spin accumulation and have comparable magnitudes.

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