Magnon Mediated Electric Current Drag Across a Ferromagnetic Insulator Layer

被引：166

作者：

Zhang, Steven S. -L. ^{[1
]}

Zhang, Shufeng ^{[1
]}

机构：

[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 09期

基金：

美国国家科学基金会;

关键词：

MAGNETIC MULTILAYERS; SPIN; TORQUE;

D O I：

10.1103/PhysRevLett.109.096603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a semiconductor heterostructure, the Coulomb interaction is responsible for the electric current drag between two 2D electron gases across an electron impenetrable insulator. For two metallic layers separated by a ferromagnetic insulator (FI) layer, the electric current drag can be mediated by a nonequilibrium magnon current of the FI. We determine the drag current by using the semiclassical Boltzmann approach with proper boundary conditions of electrons and magnons at the metal-FI interface.

引用

页数：5

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