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Temperature dependence of the picosecond spin Seebeck effect

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2021

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Kholid, Farhan Nur
Hamara, Dominik
Terschanski, Marc
Mertens, Fabian
Cinchetti, Mirko
McKenzie-Sell, Lauren
Patchett, James
Petit, Dorothée
Ciccarelli, Chiara
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https://doi.org/10.1063/5.0050205
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Applied Physics Letters. American Institute of Physics (AIP). 2021, 119, 032401. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/5.0050205

Zusammenfassung

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.

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ISO 690KHOLID, Farhan Nur, Dominik HAMARA, Marc TERSCHANSKI, Fabian MERTENS, Davide BOSSINI, Mirko CINCHETTI, Lauren MCKENZIE-SELL, James PATCHETT, Dorothée PETIT, Chiara CICCARELLI, 2021. Temperature dependence of the picosecond spin Seebeck effect. In: Applied Physics Letters. American Institute of Physics (AIP). 2021, 119, 032401. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/5.0050205
BibTex
@article{Kholid2021Tempe-54357,
  year={2021},
  doi={10.1063/5.0050205},
  title={Temperature dependence of the picosecond spin Seebeck effect},
  volume={119},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Kholid, Farhan Nur and Hamara, Dominik and Terschanski, Marc and Mertens, Fabian and Bossini, Davide and Cinchetti, Mirko and McKenzie-Sell, Lauren and Patchett, James and Petit, Dorothée and Ciccarelli, Chiara},
  note={Article Number: 032401}
}
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