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Travelling waves in a drifting flux lattice

R. Aditi Simha·Sriram Ramaswamy
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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.

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R. Aditi Simha, Sriram Ramaswamy. 1999-11-05. Travelling waves in a drifting flux lattice. https://doi.org/10.1103/physrevlett.83.3285

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