Thermal spin transfer torque in Fe｜Ag｜YIG multilayers

We investigated the thermal spin transfer effect in FM｜NM｜YIG multilayers using the first princi- ples scattering theory. At room temperature, the spin Seebeck torque TZSE -1.0 μJ/（K-m^2） in an Ag＋｜Fe｜Ag｜YIG multilayer, which is around 40% larger than that estimated from mixing conductance. The quan...

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Bibliographic Details
Published in:Frontiers of physics 2017-06, Vol.12 (3), p.87-92, Article 128501
Main Authors: Tang, Hui-Min, Jia, Xing-Tao, Wang, Shi-Zhuo
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Atomic
Condensed Matter Physics
Electrons
First principles
Interfaces
Interlayers
Magnetic fields
Molecular
Multilayers
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Research Article
Room temperature
spin Seebeck torque
spin transfer torque
Temperature
Torque
YIG
力矩
层间交换耦合
散射理论
膜
自旋转移
铁
银
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Summary:We investigated the thermal spin transfer effect in FM｜NM｜YIG multilayers using the first princi- ples scattering theory. At room temperature, the spin Seebeck torque TZSE -1.0 μJ/（K-m^2） in an Ag＋｜Fe｜Ag｜YIG multilayer, which is around 40% larger than that estimated from mixing conductance. The quantum effects such as interlayer exchange coupling between FM and YIG could be responsible for the enhancements. Based on the LLG equation, reverse the magnetic configurations, circularly, in a we predict that a temperature bias of -10 K can multilayer at room temperature.
ISSN:2095-0462
2095-0470
DOI:10.1007/s11467-016-0649-3