Odd-frequency superconductivity in dilute magnetic superconductors
Flávio L. N. Santos, Vivien Perrin, François Jamet, Marcello Civelli, Pascal Simon, Maria C. O. Aguiar, Eduardo Miranda, Marcelo J. Rozenberg
DOI 10.1103/PhysRevResearch.2.033229 · Physical Review Research
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Abstract
We show that dilute magnetic impurities in a conventional superconductor give origin to an odd-frequency component of superconductivity, manifesting itself in Yu-Shiba-Rusinov bands forming within the bulk superconducting gap. Our results are obtained in a general model solved within the dynamical mean field theory. By exploiting a disorder analysis and the limit to a single impurity, we are able to provide general expressions that can be used to extract explicitly the odd-frequency superconducting function from scanning tunneling measurements.
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