Eliashberg theory of a multiband non-phononic spin glass superconductor

TL;DR

This paper presents a solution to Eliashberg equations for a multiband non-phononic spin glass superconductor, revealing unusual temperature-dependent behaviors including reentrant superconductivity and complex phase diagrams.

Contribution

It introduces a novel theoretical analysis of multiband non-phononic spin glass superconductors using Eliashberg theory, highlighting complex temperature behaviors.

Findings

Unusual non-monotonic temperature dependence of gaps and superfluid density

Reentrant superconductivity observed in the model

Complex phase diagram with multiple superconducting regions

Abstract

I solved the Eliashberg equations for multiband non-phononic $s\pm$ wave spin glass superconductor and I calculated the temperature dependence of the gaps and superfluid density that reveals unusual behavior as non monotonic temperature dependence and reentrant superconductivity. For particular values of input parameters the phase diagram is still more complex with two different ranges of temperature where the superconductivity appears.