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Thermopower induced by a supercurrent in superconductor-normal-metal structures

Pauli Virtanen·Tero T. Heikkila
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Abstract

We examine the thermopower Q of a mesoscopic normal-metal (N) wire in contact to superconducting (S) segments and show that even with electron-hole symmetry, Q may become finite due to the presence of supercurrents. Moreover, we show how the dominant part of Q can be directly related to the equilibrium supercurrents in the structure. In general, a finite thermopower appears both between the N reservoirs and the superconductors, and between the N reservoirs themselves. The latter, however, strongly depends on the geometrical symmetry of the structure.

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Pauli Virtanen, Tero T. Heikkila. 2004-05-09. Thermopower induced by a supercurrent in superconductor-normal-metal structures. https://doi.org/10.1103/physrevlett.92.177004

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