Order and Creep in Flux Lattices and CDWs Pinned by Planar Defects

Abstract

The influence of randomly distributed point impurities \emph{and} planar defects on the order and transport in type-II superconductors and related systems is considered theoretically. For planar defects of identical orientation the flux line lattice exhibits a new glassy phase dominated by the planar defects with a finite compressibility, a transverse Meissner effect, large sample to sample fuctuations of the susceptibility and an exponential decay of translational long range order. The flux creep resistivity for currents $J$ parallel to the defects is $\rho (J)\sim \exp -(J_0/J{)}^{3/2}$ . Strong disorder enforces an array of dislocations to relax shear strain.

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Cited by in corpus (2)

• Pinning of Flux Lines by Planar Defects
• Dynamical regimes of vortex flow in type-II superconductors with parallel twin boundaries