Spin Peltier effect and its length scale in Pt/YIG system at high temperatures
Autor: | Takahagi, Atsushi, Hirai, Takamasa, Iguchi, Ryo, Nakagawara, Keita, Nagano, Hosei, Uchida, Ken-ichi |
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Rok vydání: | 2022 |
Předmět: | |
Zdroj: | Applied Physics Express 15, 063002 (2022) |
Druh dokumentu: | Working Paper |
DOI: | 10.35848/1882-0786/ac6fae |
Popis: | 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. Comment: 11 pages, 4 figures |
Databáze: | arXiv |
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