Order and Creep in Flux Lattices and CDWs Pinned by Planar Defects
ORAL
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 random planar defects of identical orientation the flux line lattice exhibits a new glassy phase with diverging shear and tilt modulus, a transverse Meissner effect, large sample to sample fluctuations of longitudinal magnetic susceptibility and an exponential decay of translational long range order. The flux creep resistivity for currents $J$ parallel to the defects is $\rho(J)\sim \exp-(J_0/J)^{\mu}$ with $\mu=3/2$. Strong disorder enforces an array of dislocations to relax shear strain.
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