Observation of the spin Peltier effect

J. Flipse; F. K. Dejene; D. Wagenaar; G. E. W. Bauer; J. Ben Youssef; B. J. van Wees

doi:10.1103/PhysRevLett.113.027601

Observation of the spin Peltier effect

Mesoscale and Nanoscale Physics 2014-07-16 v1

Authors: J. Flipse , F. K. Dejene , D. Wagenaar , G. E. W. Bauer , J. Ben Youssef , B. J. van Wees

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Abstract

We report the observation of the spin Peltier effect (SPE) in the ferrimagnetic insulator Yttrium Iron Garnet (YIG), i.e. a heat current generated by a spin current flowing through a Platinum (Pt)|YIG interface. The effect can be explained by the spin torque that transforms the spin current in the Pt into a magnon current in the YIG. Via magnon-phonon interactions the magnetic fluctuations modulate the phonon temperature that is detected by a thermopile close to the interface. By finite-element modelling we verify the reciprocity between the spin Peltier and spin Seebeck effect. The observed strong coupling between thermal magnons and phonons in YIG is attractive for nanoscale cooling techniques.

Keywords

spin transport

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@article{arxiv.1311.4772,
  title  = {Observation of the spin Peltier effect},
  author = {J. Flipse and F. K. Dejene and D. Wagenaar and G. E. W. Bauer and J. Ben Youssef and B. J. van Wees},
  journal= {arXiv preprint arXiv:1311.4772},
  year   = {2014}
}

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5 pages, 3 figures, 4 pages supplementary information, 4 supplementary figures

Observation of the spin Peltier effect

Abstract

Keywords

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