Time-resolved study of field-induced suppression of longitudinal spin Seebeck effect

Tomosato Hioki, Ryo Iguchi, Zhiyong Qiu, Dazhi Hou, Ken Ichi Uchida, Eiji Saitoh

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15 Citations (Scopus)


We have investigated the magnetic-field-induced suppression of the longitudinal spin Seebeck effect (LSSE) by using a time-resolved measurement technique at room temperature. The result manifested two distinctive time domains: the short-time domain where the observed voltage is insensitive to the magnetic fields, and the long-time domain where the both response time and the magnitude of the observed voltage decreased simultaneously by the magnetic fields. We estimated the magnon propagation length by fitting the transient LSSE response. The propagation length shows a strong dependence on the applied magnetic field, indicating the importance of long-range and low-frequency magnons in the LSSE.

Original languageEnglish
Article number073002
JournalApplied Physics Express
Issue number7
Publication statusPublished - 2017 Jul


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