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arXiv · 1109.2414

Spin-transfer mechanism for magnon-drag thermopower

M. E. Lucassen·C. H. Wong·R. A. Duine·Y. Tserkovnyak
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Abstract

We point out a relation between the dissipative spin-transfer-torque parameter $β$ and the contribution of magnon drag to the thermoelectric power in conducting ferromagnets. Using this result we estimate $β$ in iron at low temperatures, where magnon drag is believed to be the dominant contribution to the thermopower. Our results may be used to determine $β$ from magnon-drag-thermopower experiments, or, conversely, to infer the strength of magnon drag via experiments on spin transfer.

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M. E. Lucassen, C. H. Wong, R. A. Duine, Y. Tserkovnyak. 2011-09-12. Spin-transfer mechanism for magnon-drag thermopower. https://doi.org/10.1063/1.3672207

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