Thickness dependence of spin Peltier effect visualized by thermal imaging technique

Shunsuke Daimon, Ken Ichi Uchida, Naomi Ujiie, Yasuyuki Hattori, Rei Tsuboi, Eiji Saitoh

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Magnon propagation length in a ferrimagnetic insulator yttrium iron garnet (YIG) has been investigated by measuring and analyzing the YIG-thickness t YIG dependence of the spin Peltier effect (SPE) in a Pt/YIG junction system. By means of the lock-in thermography technique, we measured the spatial distribution of the SPE-induced temperature modulation in the Pt/YIG system with the t YIG gradation, allowing us to obtain the accurate t YIG dependence of SPE with high t YIG resolution. Based on the t YIG dependence of SPE, we verified the applicability of several phenomenological models to estimate the magnon diffusion length in YIG.

本文言語English
論文番号103001
ジャーナルApplied Physics Express
13
10
DOI
出版ステータスPublished - 2020 10 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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