Lamacraft A, Simons BD. Tail states in a superconductor with magnetic impurities.
PHYSICAL REVIEW LETTERS 2000;
85:4783-4786. [PMID:
11082651 DOI:
10.1103/physrevlett.85.4783]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2000] [Indexed: 05/23/2023]
Abstract
A field theoretic approach is developed to investigate the profile and spectrum of subgap states in a superconductor subject to a weak magnetic impurity potential. Such states are found to be associated with spatially inhomogeneous instanton configurations of the action.
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