Frequency dependent conductivity of vortex cores in type II superconductors

  title={Frequency dependent conductivity of vortex cores in type II superconductors},
  author={Theodore C. Hsu},
  journal={Physica C-superconductivity and Its Applications},
  • T. Hsu
  • Published 26 August 1992
  • Physics
  • Physica C-superconductivity and Its Applications
Abstract Recent experiments by Karrai et al. probed vortices in YBa2Cu3O7 at frequencies near the “minigap” between discrete core states, Δ2/EF. EF is the Fermi energy and Δ is the bulk energy gap. Here we calculate the conductivity, σ(ω), of vortices using a novel, microscopic description of single vortex dynamics based on the Bogoliubov-deGennes equations and self-consistency through the gap equation. It is applicable to the low temperature, clean, type II limit. An equation of motion for… 
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