KOPS - Das Institutionelle Repositorium der Universität Konstanz

Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device

Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device

Zitieren

Dateien zu dieser Ressource

Prüfsumme: MD5:c2691297bde1847d9e4a38b07ac49d0b

MACHON, Peter, Matthias ESCHRIG, Wolfgang BELZIG, 2014. Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device. In: New Journal of Physics. 16, 073002. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/16/7/073002

@article{Machon2014Giant-29234, title={Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device}, year={2014}, doi={10.1088/1367-2630/16/7/073002}, volume={16}, journal={New Journal of Physics}, author={Machon, Peter and Eschrig, Matthias and Belzig, Wolfgang}, note={Article Number: 073002} }

Eschrig, Matthias 2014-11-10T15:21:00Z Machon, Peter Belzig, Wolfgang Eschrig, Matthias 2014 Belzig, Wolfgang 2014-11-10T15:21:00Z Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device eng Machon, Peter The usually negligibly small thermoelectric effects in superconducting heterostructures can be boosted dramatically due to the simultaneous effect of spin splitting and spin filtering. Building on an idea of our earlier work (Machon et al 2013 Phys. Rev. Lett. 110 047002), we propose realistic mesoscopic setups to observe thermoelectric effects in superconductor heterostructures with ferromagnetic interfaces or terminals. We focus on the Seebeck effect being a direct measure of the local thermoelectric response and find that a thermopower of the order of ~ 250 µ V K<sup>-1</sup> can be achieved in a transistor-like structure. A measurement of the thermopower can furthermore be used to determine quantitatively the spin-dependent interface parameters that induce the spin splitting. For applications in nanoscale cooling we discuss the figure of merit for which we find values exceeding 1.5 for temperatures ≤ 1 K.

Dateiabrufe seit 10.11.2014 (Informationen über die Zugriffsstatistik)

Machon_0-258401.pdf 98

Das Dokument erscheint in:

KOPS Suche


Stöbern

Mein Benutzerkonto