Magnon mediated electric current drag across a ferromagnetic insulator layer

Steven S.L. Zhang, Shufeng Zhang

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Abstract

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.

Original languageEnglish (US)
Article number096603
JournalPhysical review letters
Volume109
Issue number9
DOIs
StatePublished - Aug 29 2012

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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