【摘 要】
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Energy waste is a severe bottleneck in the supply of sustainable energy to any modern economy.Besides developing new energy sources,the global energy crisis
【出 处】
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The 2nd International Conference on Phononics and thermal En
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Energy waste is a severe bottleneck in the supply of sustainable energy to any modern economy.Besides developing new energy sources,the global energy crisis can be alleviated by re-utilizing the waste heat.In this talk,I will first introduce some background of harnessing the thermal energy by the thermoelectrics,spin caloritronics,and phononics.Then,in the second part,I would like to share with you some of my recent exciting discoveries about the rectification and negative differential spin Seebeck effects,exemplified in metal/magnetic insulator interfaces and magnon tunneling junctions.These properties lead us to the novel devices,such as thermal-driven spin diode and transistor in the absence of electric transports.I call them spin Seebeck diode and transistor.These findings imply that a spin computer driven by waste heat might not be a dream in the future,which offer us new opportunities to achieve the smart control of energy and information at nanoscale.
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