Thermal conductance of a proximity superconductor
arXiv:1003.5154 · doi:10.1103/PhysRevLett.105.097004
Abstract
We study heat transport in hybrid normal metal - superconductor - normal metal (NSN) structures. We find the thermal conductance of a short superconducting wire to be strongly enhanced beyond the BCS value due to inverse proximity effect. The measurements agree with a model based on the quasiclassical theory of superconductivity in the diffusive limit. We determine a crossover temperature below which quasiparticle heat conduction dominates over the electron-phonon relaxation.
4+ pages, 3 figures
References in corpus (5)
- Phase controlled superconducting proximity effect probed by tunneling spectroscopy
- Recombination limited energy relaxation in a BCS superconductor
- Crossed Andreev reflection in diffusive contacts
- Quantitative measurements of the thermal resistance of Andreev interferometers
- Origin of Hysteresis in a Proximity Josephson Junction
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