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Effect of Spin Current on Uniform Ferromagnetism: Domain Nucleation

Junya Shibata·Gen Tatara·Hiroshi Kohno
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Abstract

Large spin current applied to a uniform ferromagnet leads to a spin-wave instability as pointed out recently. In this paper, it is shown that such spin-wave instability is absent in a state containing a domain wall, which indicates that nucleation of magnetic domains occurs above a certain critical spin current. This scenario is supported also by an explicit energy comparison of the two states under spin current.

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Junya Shibata, Gen Tatara, Hiroshi Kohno. 2005-01-06. Effect of Spin Current on Uniform Ferromagnetism: Domain Nucleation. https://doi.org/10.1103/physrevlett.94.076601

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