C-axis Optical Sum Rule in Josephson Coupled Vortex State

Abstract

Observed violations of the $c$-axis optical sum rule can give important information on deviations from in-plane Fermi liquid behavior and on the nature of interlayer coupling between adjacent copper oxide planes. Application of a magnetic field perpendicular to these planes is another way to probe in-plane dynamics. We find that the optical sum rule is considerably modified in the presence of the $c$-axis magnetic field. Interlayer correlation of pancake vortices is involved in the sum rule modification; however, details of the vortex distribution in the plane are less important.

one figure. To be published in PRB (Sep. 20001)

References in corpus (5)

• Quasiparticles in the vortex lattice of unconventional superconductors: Bloch waves or Landau levels?
• Discrimination between the superconducting gap and the pseudo-gap in Bi2212 from intrinsic tunneling spectroscopy in magnetic field
• Interlayer Conductivity in the Superconductor Tl-Ba-Cu-O: Energetics and Energy Scales
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Cited by in corpus (2)

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• Optical sum in Nearly Antiferromagnetic Fermi Liquid Model