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arXiv · 1206.1259

Magnon-driven quantum-dot heat engine

Björn Sothmann·Markus Büttiker
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Abstract

We investigate a heat- to charge-current converter consisting of a single-level quantum dot coupled to two ferromagnetic metals and one ferromagnetic insulator held at different temperatures. We demonstrate that this nano engine can act as an optimal heat to spin-polarized charge current converter in an antiparallel geometry, while it acts as a heat to pure spin current converter in the parallel case. We discuss the maximal output power of the device and its efficiency.

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Björn Sothmann, Markus Büttiker. 2012-07-18. Magnon-driven quantum-dot heat engine. https://doi.org/10.1209/0295-5075%2F99%2F27001

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