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17 May 2016 BiSb and spin-related thermoelectric phenomena
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This article reviews the factors limiting the figure of merit zT of conventional thermoelectrics especially at cryogenic temperatures and then highlights modern approaches used to increase zT below 200 K. Two type of materials are discussed. The first are BiSb alloys, relatively conventional thermoelectrics in which the zT is enhanced by using resonant levels. The second is the spin- Seebeck effect (SSE), a new solid-state energy conversion technology. Classical thermoelectric and SSE physics are combined to provide new concepts, like magnon-drag, in which we hope to increase the performance of solid-state coolers by exploiting the spin degree of freedom.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph P. Heremans, Hyungyu Jin, Yuanhua Zheng, Sarah J. Watzman, and Arati Prakash "BiSb and spin-related thermoelectric phenomena", Proc. SPIE 9821, Tri-Technology Device Refrigeration (TTDR), 98210I (17 May 2016);

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