Effects of kinked linear defects on planar flux line arrays

E. Katifori () and D. R. Nelson

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 59, issue 3, 319-327

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. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 74.25.Qt Vortex lattices; flux pinning; flux creep; 72.15.Rn Localization effects (Anderson or weak localization) (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00297-9

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