paper

Elastic Theory of pinned flux lattices

arXiv:cond-mat/9303051 · doi:10.1103/PhysRevLett.72.1530

Abstract

The pinning of flux lattices by weak impurity disorder is studied in the absence of free dislocations using both the gaussian variational method and, to , the functional renormalization group. We find universal logarithmic growth of displacements for : and persistence of algebraic quasi-long range translational order. When the two methods can be compared they agree within on the value of . We compute the function describing the crossover between the ``random manifold'' regime and the logarithmic regime. This crossover should be observable in present decoration experiments.

12 pages, Revtex 3.0

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