Spin Peltier effect and its length scale in Pt/YIG system at high temperatures

Atsushi Takahagi; Takamasa Hirai; Ryo Iguchi; Keita Nakagawara; Hosei Nagano; Ken-ichi Uchida

doi:10.35848/1882-0786/ac6fae

Spin Peltier effect and its length scale in Pt/YIG system at high temperatures

Mesoscale and Nanoscale Physics 2022-10-26 v1 Materials Science

Authors: Atsushi Takahagi , Takamasa Hirai , Ryo Iguchi , Keita Nakagawara , Hosei Nagano , Ken-ichi Uchida

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Abstract

The temperature and yttrium-iron-garnet (YIG) thickness dependences of the spin Peltier effect (SPE) have been investigated using a Pt/YIG junction system at temperatures ranging from room temperature to the Curie temperature of YIG by the lock-in thermography method. By analyzing the YIG thickness dependence using an exponential decay model, the characteristic length of SPE in YIG is estimated to be 0.9 $\mu$ m near room temperature and almost constant even near the Curie temperature. The high-temperature behavior of SPE is clearly different from that of the spin Seebeck effect, providing a clue for microscopically understanding the reciprocal relation between them.

Keywords

spin peltier effect pt/yig junction yttrium-iron-garnet curie temperature lock-in thermography spin seebeck effect

Cite

@article{arxiv.2204.05482,
  title  = {Spin Peltier effect and its length scale in Pt/YIG system at high temperatures},
  author = {Atsushi Takahagi and Takamasa Hirai and Ryo Iguchi and Keita Nakagawara and Hosei Nagano and Ken-ichi Uchida},
  journal= {arXiv preprint arXiv:2204.05482},
  year   = {2022}
}

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11 pages, 4 figures

Spin Peltier effect and its length scale in Pt/YIG system at high temperatures

Abstract

Keywords

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