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  • APL21-AR-02154

    Rights statement: Copyright 2021 American Institute of Physics. The following article appeared in Applied Physics Letters, 119, (3), 2021 and may be found at http://dx.doi.org/10.1063/5.0050205 This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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Temperature dependence of the picosecond spin Seebeck effect

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  • Farhan Kholid
  • Dominik Hamara
  • Marc Terschanski
  • Fabian Mertens
  • Davide Bossini
  • Mirko Cinchetti
  • Lauren McKenzie-Sell
  • James Patchett
  • Dorothee Petit
  • Russell Cowburn
  • Jason Robinson
  • Joseph Barker
  • Chiara Ciccarelli
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Article number032401
<mark>Journal publication date</mark>19/07/2021
<mark>Journal</mark>Applied Physics Letters
Issue number3
Volume119
Number of pages6
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We performed temperature-dependent optical pump–THz emission measurements in Y3Fe5O12 (YIG)|Pt from 5 K to room temperature in the presence of an externally applied magnetic field. We study the temperature dependence of the spin Seebeck effect and observe a continuous increase as temperature is decreased, opposite to what is observed in electrical measurements, where the spin Seebeck effect is suppressed as 0 K is approached. By quantitatively analyzing the different contributions, we isolate the temperature dependence of the spin-mixing
conductance and observe features that are correlated with the bands of magnon spectrum in YIG.

Bibliographic note

Copyright 2021 American Institute of Physics. The following article appeared in Applied Physics Letters, 119, (3), 2021 and may be found at http://dx.doi.org/10.1063/5.0050205 This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.