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
Rok vydání:	2022
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
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
Externí odkaz:	http://arxiv.org/abs/2204.05482 Zobrazit plný text záznamu View this record from Arxiv