Magnon Mediated Electric Current Drag Across a Ferromagnetic Insulator Layer

Steven S. -L. Zhang; Shufeng Zhang

doi:10.1103/physrevlett.109.096603

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arXiv · 1208.5812

Magnon Mediated Electric Current Drag Across a Ferromagnetic Insulator Layer

Steven S. -L. Zhang·Shufeng Zhang

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Abstract

In a semiconductor hererostructure, 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.

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Steven S. -L. Zhang, Shufeng Zhang. 2012-08-28. Magnon Mediated Electric Current Drag Across a Ferromagnetic Insulator Layer. https://doi.org/10.1103/physrevlett.109.096603

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