Defect pair in the elastic lattice of pancake vortices

M. Slutzky, R. Mints, E. Brandt

Research output: Contribution to journalArticlepeer-review

Abstract

An additional pancake-antipancake vortex pair is considered in the vortex lattice of layered superconductors. Within linear elastic continuum theory, the relaxation of the background lattice screens the long-range logarithmic interaction of the defect pair, reducing the factor (Formula presented) to (Formula presented) where (Formula presented) is the pair spacing, (Formula presented) the in-plane coherence length, and (Formula presented) the vortex spacing. The finite tilt modulus does not destroy this ideal two-dimensional screening, yielding a small correction (Formula presented), which in principle is of long range, but has a very small prefactor when the vortex spacing (Formula presented) is smaller than the in-plane penetration depth (Formula presented).

Original languageEnglish
Pages (from-to)453-457
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number1
DOIs
StatePublished - 1997

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