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Tuesday, November 6 2018

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A central goal in spintronics is to develop devices that rely on the transfer of spin rather than charge. In magnetic insulators, magnons, i.e., quanta of collective spin excitations, carry a pure spin current and offer energy efficient information transport and processing. Spin Seebeck effect has emerged as an attractive method for generating spin current due to its simplicity and the ubiquitous presence of thermal gradients. Spin current can be driven by both temperature and magnon chemical potential gradients.