1305.0301 (Jie Ren)
Jie Ren
We study the nonequilibrium spin-thermal transport across a metal-magnetic insulator interface. The conjugate-converted thermal-spin transport is assisted by the exchange interaction at the interface, between conduction electrons in the metal lead and localized spins in the insulating magnet lead. We predict the rectification and negative differential spin Seebeck effect and resolve their microscopic mechanism. The rectification of spin Peltier effect is also identified. The phenomena predicted here are relevant for designing efficient spin/magnon diode and transistor, which could play crucial roles in controlling energy and information in functional devices.
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http://arxiv.org/abs/1305.0301
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