High-frequency dynamical response of Abrikosov vortex lattice in flux-flow region

Abstract

The dynamical response of the Abrikosov vortex lattice in the presence of an oscillating driving field is calculated by constructing an analytical solution of the time-dependent Ginzburg-Landau equation. The solution is steady-state, and work done by the input signal is dissipated through vortex cores, mainly by scattering with phonons. The response is nonlinear in the input signal, and is verified for consistency within the theory. The existence of well-defined parameters to control nonlinear effects is important for any practical application in electronics, and a normalised distance from the normal-superconducting phase-transition boundary is found to be such a parameter to which the response is sensitive. Favourable comparison with NbN experimental data in the optical region is made, where the effect is in the linear regime. Predictions are put forward regarding the suppression of heating and also the lattice configuration at high frequency.

arXiv comment13 pages, 7 figures, revtex; V2: clarifications, reference added, mended typos

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• Structure of Flux Line Lattices with Weak Disorder at Large Length Scales
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