Critical suppression of spin Seebeck effect by magnetic fields

  title={Critical suppression of spin Seebeck effect by magnetic fields},
  author={Takashi Kikkawa and Ken-ichi Uchida and Shunsuke Daimon and Zhiyong Qiu and Yuki Shiomi and Eiji Saitoh},
  journal={Physical Review B},
The longitudinal spin Seebeck effect (LSSE) in $\mathrm{Pt}/{\mathrm{Y}}_{3}{\mathrm{Fe}}_{5}{\mathrm{O}}_{12}\phantom{\rule{0.28em}{0ex}}(\mathrm{YIG})$ junction systems has been investigated at various magnetic fields and temperatures. We found that the LSSE voltage in a Pt/YIG-slab system is suppressed by applying high magnetic fields and this suppression is critically enhanced at low temperatures. The field-induced suppression of the LSSE in the Pt/YIG-slab system is too large at around… 

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