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The European Physical Journal B

, Volume 59, Issue 3, pp 319–327 | Cite as

Effects of kinked linear defects on planar flux line arrays

  • E. KatiforiEmail author
  • D. R. Nelson
Solids and Liquids
  • 41 Downloads

Abstract.

In the hard core limit, interacting vortices in planar type II superconductors can be modeled as non-interacting one dimensional fermions propagating in imaginary time. We use this analogy to derive analytical expressions for the probability density and imaginary current of vortex lines interacting with an isolated bent line defect and to understand the pinning properties of such systems. When there is an abrupt change of the direction of the pinning defect, we find a sinusoidal modulation of the vortex density in directions both parallel and perpendicular to the defect.

PACS.

74.25.Qt Vortex lattices, flux pinning, flux creep 72.15.Rn Localization effects (Anderson or weak localization) 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  1. 1.Department of PhysicsHarvard UniversityCambridgeUSA

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