Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system

Milan Agrawal; Alexander A. Serga; Viktor Lauer; Evangelos Th. Papaioannou; Burkard Hillebrands; Vitaliy I. Vasyuchka

doi:10.1063/1.4894636

Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system

Mesoscale and Nanoscale Physics 2014-09-12 v2

Authors: Milan Agrawal , Alexander A. Serga , Viktor Lauer , Evangelos Th. Papaioannou , Burkard Hillebrands , Vitaliy I. Vasyuchka

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Abstract

A microwave technique is employed to simultaneously examine the spin pumping and the spin Seebeck effect processes in a YIG|Pt bilayer system. The experimental results show that for these two processes, the spin current flows in opposite directions. The temporal dynamics of the longitudinal spin Seebeck effect exhibits that the effect depends on the diffusion of bulk thermal-magnons in the thermal gradient in the ferromagnetic-insulator|normal-metal system.

Keywords

spin currents microwave spin pumping spin Seebeck effect YIG|Pt bilayer thermal-magnons ferromagnetic-insulator

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@article{arxiv.1407.4957,
  title  = {Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system},
  author = {Milan Agrawal and Alexander A. Serga and Viktor Lauer and Evangelos Th. Papaioannou and Burkard Hillebrands and Vitaliy I. Vasyuchka},
  journal= {arXiv preprint arXiv:1407.4957},
  year   = {2014}
}

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4 pages, 4 figures

Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system

Abstract

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