Complete magnetic control over the superconducting thermoelectric effect
Jabir Ali Ouassou, César González-Ruano, Diego Caso, Farkhad G. Aliev, Jacob Linder
DOI 10.1103/PhysRevB.106.094514 · Physical Review B
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Abstract
Giant thermoelectric effects are known to arise at the interface between superconductors and strongly polarized ferromagnets, enabling the construction of efficient thermoelectric generators. We predict that the thermopower of such a generator can be completely controlled by a magnetic input signal: Not only can the thermopower be toggled on and off by rotating a magnet, but it can even be entirely reversed. This in situ control diverges from conventional thermoelectrics, where the thermopower is usually fixed by the device design.
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