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Home > Issues > RetrieveComparison of Spin Seebeck Signal in Y3Fe5O12 Film Measured by Joule Heating- and Laser Heating-based Measurement Systems
Journal of Magnetics, Volume 27, Number 1, 31 Mar 2022, Pages 1-6
Phuoc Cao Van (Department of Material Science and Engineering, Chungnam National University), Duc Duong Viet (Department of Material Science and Engineering, Chungnam National University), Trinh Nguyen Thi (Department of Material Science and Engineering, Chungnam National University), Ji-Hwan Seol (Department of Material Science and Engineering, Chungnam National University), Gun-Woo Park (Department of Material Science and Engineering, Chungnam National University), Jong-Ryul Jeong * 
(Department of Material Science and Engineering, Chungnam National University), Seung-Young Park (Center for Scientific Instrumentation, Korea Basic Science Institute), Churl Hee Cho * (Graduate School of Energy Science and Technology, Chungnam National University)
(Department of Material Science and Engineering, Chungnam National University), Seung-Young Park (Center for Scientific Instrumentation, Korea Basic Science Institute), Churl Hee Cho * (Graduate School of Energy Science and Technology, Chungnam National University)
Abstract
In this study, spin Seebeck effect (SSE) signals caused by a thermal gradient induced by Joule and laser heating
were examined. A Pt/Y3Fe5O12/Gd3Ga5O12 sample was used as the reference for SSE measurement. Both
the Joule heating- and laser heating-based SSE measurement systems captured SSE hysteresis loops consistent
with the magnetic hysteresis loop of the sample. The laser heating-based system measured a higher SSE signal;
however, h eat flux could not b e precisely evaluated. With the Joule heating-based system, the spin Seebeck
resistivity (SSR) was 21.2 ± 1 nm/A, comparable with the values obtained in other studies and indicating the
feasibility of our apparatus for investigating SSE.
were examined. A Pt/Y3Fe5O12/Gd3Ga5O12 sample was used as the reference for SSE measurement. Both
the Joule heating- and laser heating-based SSE measurement systems captured SSE hysteresis loops consistent
with the magnetic hysteresis loop of the sample. The laser heating-based system measured a higher SSE signal;
however, h eat flux could not b e precisely evaluated. With the Joule heating-based system, the spin Seebeck
resistivity (SSR) was 21.2 ± 1 nm/A, comparable with the values obtained in other studies and indicating the
feasibility of our apparatus for investigating SSE.
Keywords: Spin Seebeck effect; spin Seebeck resistivity; Joule heating; laser heating; Y3Fe5O12
DOI: https://doi.org/10.4283/JMAG.2022.27.1.001
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