Spin Transfer Without Spin Conservation

Alvaro S. Núñez; A. H. MacDonald

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arXiv · cond-mat/0403710

Spin Transfer Without Spin Conservation

Alvaro S. Núñez·A. H. MacDonald

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Abstract

We propose a general theory of the spin-transfer effects that occur when current flows through inhomogeneous magnetic systems. Our theory does not rest on an appeal to conservation of total spin, can assess whether or not current-induced magnetization precession and switching in a particular geometry will occur coherently, and can estimate the efficacy of spin-transfer when spin-orbit interactions are present. We illustrate our theory by applying it to a toy-model two-dimensional-electron-gas ferromagnet with Rashba spin-orbit interactions.

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Alvaro S. Núñez, A. H. MacDonald. 2004-03-29. Spin Transfer Without Spin Conservation. https://arxiv.org/abs/cond-mat/0403710

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