paper

Travelling waves in a drifting flux lattice

arXiv:cond-mat/9904105 · doi:10.1103/PhysRevLett.83.3285

Abstract

Starting from the time-dependent Ginzburg-Landau (TDGL) equations for a type II superconductor, we derive the equations of motion for the displacement field of a moving vortex lattice without inertia or pinning. We show that it is linearly stable and, surprisingly, that it supports wavelike long-wavelength excitations arising not from inertia or elasticity but from the strain-dependent mobility of the moving lattice. It should be possible to image these waves, whose speeds are a few μm/s, using fast scanning tunnelling microscopy.

4 pages, revtex, 2 .eps figures imbedded in paper, title shortened, minor textual changes

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