Electromagnetic response of a vortex in layered superconductors

M. Eschrig, J. A. Sauls

Research output: Contribution to journalArticlepeer-review

61 Scopus citations


We calculate the response of a vortex core in a layered superconductor to an ac electromagnetic field. In particular we investigate the intermediate clean regime, where the broadening of the vortex core bound states is comparable to or larger than the level spacing. The response of the order parameter, impurity self-energy, and currents are obtained by a self-consistent determination of the distribution functions and the excitation spectrum. The response is dominated by order parameter collective modes coupled to the fermion excitations of the vortex core. At low frequencies this coupling leads to substantially enhanced absorption in the vortex core.

Original languageEnglish (US)
Pages (from-to)10447-10454
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number14
StatePublished - 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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