Quasiparticle entropy in superconductor/normal metal/superconductor proximity junctions in the diffusive limit

Article

关键词: DENSITY-OF-STATES;    FREE-ENERGY;    BOUNDARY-CONDITIONS;    WEAK LINKS;    EQUATIONS;    SYSTEMS;    SUPERCONDUCTIVITY;    FLUCTUATIONS;    TRANSPORT;    ALLOYS;   

DOI  :  10.1103/PhysRevB.96.245311

来源: SCIE

【 摘 要 】

We discuss the quasiparticle entropy and heat capacity of a dirty superconductor/normal metal/superconductor junction. In the case of short junctions, the inverse proximity effect extending in the superconducting banks plays a crucial role in determining the thermodynamic quantities. In this case, commonly used approximations can violate thermodynamic relations between supercurrent and quasiparticle entropy. We provide analytical and numerical results as a function of different geometrical parameters. Quantitative estimates for the heat capacity can be relevant for the design of caloritronic devices or radiation sensor applications.

【 授权许可】

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