TY - JOUR
T1 - Thickness dependence of spin Peltier effect visualized by thermal imaging technique
AU - Daimon, Shunsuke
AU - Uchida, Ken Ichi
AU - Ujiie, Naomi
AU - Hattori, Yasuyuki
AU - Tsuboi, Rei
AU - Saitoh, Eiji
N1 - Publisher Copyright:
© 2020 The Japan Society of Applied Physics.
PY - 2020/10/1
Y1 - 2020/10/1
N2 - 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.
AB - 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.
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U2 - 10.35848/1882-0786/abb2b5
DO - 10.35848/1882-0786/abb2b5
M3 - Article
AN - SCOPUS:85091701299
SN - 1882-0778
VL - 13
JO - Applied Physics Express
JF - Applied Physics Express
IS - 10
M1 - 103001
ER -