Effect of magnetic field on impurity bound states in high-Tc superconductors

The influence of magnetic field H on the quasiparticle bound states near strong impurities in d-wave superconductors is considered. At large but finite impurity strength, there are corrections to the energy and width of the impurity-induced resonance, proportional to H2. In the limit of very strong...

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Bibliographic Details
Published inPhysica. B, Condensed matter Vol. 312-313; pp. 81 - 83
Main Authors Samokhin, K.V., Walker, M.B.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2002
Subjects
d-wave pairing
Impurity bound states
d-wave pairing
Impurity bound states
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Summary:The influence of magnetic field H on the quasiparticle bound states near strong impurities in d-wave superconductors is considered. At large but finite impurity strength, there are corrections to the energy and width of the impurity-induced resonance, proportional to H2. In the limit of very strong impurity potential (unitary limit), the bound state is destroyed and acquires a finite width which depends non-analytically on H. There are also considerable changes in the asymptotic behaviour of the bound state wave functions, which might affect the quasiparticle transport in HTSC.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(01)01278-9