Thermal Conductance by the Inverse Proximity Effect in a Superconductor

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2010
Major/Subject
Mcode
Degree programme
Language
en
Pages
097004/1-4
Series
Physical Review Letters, Volume 105, Issue 9
Abstract
We study heat transport in hybrid lateral normal-metal–superconductor–normal-metal structures. We find the thermal conductance of a short superconducting wire to be strongly enhanced beyond the BCS value due to the inverse proximity effect, resulting from contributions of elastic cotunneling and crossed Andreev reflection of quasiparticles. Our measurements agree with a model based on the quasiclassical theory of inhomogeneous superconductivity in the diffusive limit.
Description
Keywords
heat transport, superconductors, thermal conductance, wires, inhomogeneous superconductivity
Other note
Citation
Peltonen, J. T. & Virtanen, P. & Meschke, M. & Koski, J. V. & Heikkilä, T. T. & Pekola, Jukka. 2010. Thermal Conductance by the Inverse Proximity Effect in a Superconductor. Physical Review Letters. Volume 105, Issue 9. 097004/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.105.097004.