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Spin-wave spin current in magnetic insulators

Uchida, Kenichi*; Adachi, Hiroto; Kajiwara, Yosuke*; Maekawa, Sadamichi; Saito, Eiji

A spin wave is a collective motion of magnetic moment in magnetically ordered materials. Although spin waves have been known and investigated for many years, resent research has revealed that the spin wave plays an important role in spintronics as a carrier of spin current, i.e., a flow of spin angular momentum. Such a spin-wave spin current is available in magnetic insulators even in the absence of conduction electrons, thus opens a new route for investigating spintronic phenomena in magnetic insulators. In this article we review recent progress in insulator spintronics.

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Category:Physics, Condensed Matter

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