Phase-Dependent Electronic Specific Heat in Mesoscopic Josephson Junctions

Details Phase-Dependent Electronic Specific Heat in Mesoscopic Josephson Junctions Phase-Dependent Electronic Specific Heat in Mesoscopic Josephson Junctions

2008-05-07

arxiv.org/abs/0805.0853v1

Phys. Rev. B 78, 012503 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4+ pages, 4 figures

Scientific paper

10.1103/PhysRevB.78.012503

We study the influence of superconducting correlations on the electronic specific heat in a diffusive superconductor-normal metal-superconductor Josephson junction. We present a description of this system in the framework of the diffusive-limit Green's function theory, taking into account finite temperatures, phase difference as well as junction parameters. We find that proximity effect may lead to a substantial deviation of the specific heat as compared to that in the normal state, and that it can be largely tuned in magnitude by changing the phase difference between the superconductors. A measurement setup to confirm these predictions is also suggested.

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