Complete Suppression of Longitudinal Spin Seebeck Effect by Frozen Magnetization Dynamics in Y3Fe5O12
Complete Suppression of Longitudinal Spin Seebeck Effect by Frozen Magnetization Dynamics in Y3Fe5O12
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DOI：
10.7566/jpsj.85.065003
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发表时间：
2016-06-15
影响因子：
1.7
通讯作者：
Saitoh, Eiji
中科院分区：
文献类型：
--
作者：
Kikkawa, Takashi;Uchida, Ken-ichi;Saitoh, Eiji
在低温和不同磁场下，研究了Pt膜/Y3 Fe 5 O 12（YIG）-平板结系统中纵向位形的自旋塞贝克效应（SSE）.我们发现，通过增加施加的磁场，SSE信号逐渐减小并收敛到零，而不显示符号反转。完整的场诱导抑制的SSE解释在磁振子激发的塞曼间隙的效果。
The spin Seebeck effect (SSE) in a Pt-film/Y3Fe5O12 (YIG)-slab junction system has been investigated at low temperatures and under various magnetic fields in the longitudinal configuration. We found that, by increasing applied magnetic fields, the SSE signal gradually decreases and converges to zero without showing sign reversal. The complete field-induced suppression of the SSE is interpreted in terms of the effect of the Zeeman gap in magnon excitation.