期刊
APPLIED PHYSICS EXPRESS
卷 5, 期 9, 页码 -出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/APEX.5.093001
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资金
- CREST Creation of Nanosystems with Novel Functions through Process Integration of the Japan Science and Technology Agency
- Foundation of Ando Laboratory
- Grants-in-Aid for Scientific Research [11J08245] Funding Source: KAKEN
Voltage signals induced by the spin-Seebeck effect (SSE) are shown to be enhanced by introducing a thermopile structure consisting of two different metals with positive and negative spin-Hall angles. In the spin-Hall thermopile, the positive and negative SSE signals in the metals are added to the output voltage in series. Here, we demonstrate that a Pt/Nb thermopile on an Y3Fe5O12 (YIG) slab exhibits the SSE voltage one order of magnitude greater than that in a plain Pt/YIG system. Since the spin-Hall thermopile enables sensitive detection of a spin voltage in a versatile manner, it will be useful to construct spin and heat sensors. (C) 2012 The Japan Society of Applied Physics
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