Minigap in a long disordered SNS junction: analytical results

TL;DR

This paper refines analytical results on the density of states and minigap behavior in long disordered SNS junctions, providing insights into phase difference effects and energy regimes.

Contribution

It offers new analytical insights into the density of states and minigap behavior in long disordered SNS junctions with transparent interfaces.

Findings

Minigap behavior near phase differences zero and PI analyzed

Density of states at energies much larger than the minigap characterized

Refined analytical expressions for the density of states in disordered SNS junctions

Abstract

We review and refine analytical results on the density of states in a long disordered superconductor - normal-metal - superconductor junction with transparent interfaces. Our analysis includes the behavior of the minigap near phase differences zero and PI across the junction, as well as the density of states at energies much larger than the minigap but much smaller than the superconducting gap.