Two-Fluid Model for Granular Superconductors

Details Two-Fluid Model for Granular Superconductors Two-Fluid Model for Granular Superconductors

2006-01-04

arxiv.org/abs/cond-mat/0601064v1

Phys. Rev. B 74, 184526 (2006)

Physics

Condensed Matter

Superconductivity

6 pages, 6 figures

Scientific paper

10.1103/PhysRevB.74.184526

A two-fluid model is proposed to describe the transport properties of granular superconductors. Using the resistively shunted junction model and some aspects of the two-level system theory, a statistical model is developed which takes into account the ratio between the number of normal and superconducting electrons carrying the applied current. The theoretical model reveals excellent agreement when compared to transport properties of four high-Tc superconductors. The results suggest that the two-fluid model is independent of the sample composition, critical temperature and whether the superconducting compound is electron or hole-doped.

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