# Impurity-induced subgap states in superconductors with inhomogeneous pairing

@article{Bespalov2019ImpurityinducedSS,
title={Impurity-induced subgap states in superconductors with inhomogeneous pairing},
author={Anton Bespalov},
journal={Physical Review B},
year={2019}
}
• A. Bespalov
• Published 4 September 2019
• Physics
• Physical Review B
We study subgap states induced by a single impurity in an s-wave superconductor with suppressed pairing. For concreteness, we consider a bulk superconductor containing a normal spherical region. We find that a point impurity in this system induces two Yu-Shiba-Rusinov states inside the minigap instead of one, which one would have in a homogeneous superconductor. Moreover, the subgap states appear even if the impurity is nonmagnetic. We prove that this result actually holds almost for any…
2 Citations

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