Seebeck Effect in Nanomagnets

Dmitry V. Fedorov; Martin Gradhand; Katarina Tauber; Gerrit E. W. Bauer; Ingrid Mertig

doi:10.1088/1361-648x/ac3b26

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arXiv · 1706.08753

Seebeck Effect in Nanomagnets

Dmitry V. Fedorov·Martin Gradhand·Katarina Tauber·Gerrit E. W. Bauer·Ingrid Mertig

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Abstract

We present a theory of the Seebeck effect in nanomagnets with dimensions smaller than the spin diffusion length, showing that the spin accumulation generated by a temperature gradient strongly affects the thermopower. We also identify a correction arising from the transverse temperature gradient induced by the anomalous Ettingshausen effect and an induced spin-heat accumulation gradient. The relevance of these effects for nanoscale magnets is illustrated by ab initio calculations on dilute magnetic alloys.

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Dmitry V. Fedorov, Martin Gradhand, Katarina Tauber, Gerrit E. W. Bauer, Ingrid Mertig. 2017-06-27. Seebeck Effect in Nanomagnets. https://doi.org/10.1088/1361-648x/ac3b26

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