Dissipation of moving vortices in thin films

Abstract

Moving vortices in thin superconducting films are considered within the time-dependent London description. The dissipation due to out-of-core normal excitations for two vortices moving together turns out to have a minimum for the separation vector $\mathbf{a}$ parallel to the velocity and equal to $a_m\approx 2.2\Lambda$, where $\Lambda$ is the Pearl length. The minimum entropy production suggests that moving vortices should have a tendency to form chains along the velocity with a period of the order $a_m$.

4 pages, 4 figures

References in corpus (1)

• Imaging of super-fast dynamics and flow instabilities of superconducting vortices

Cited by in corpus (1)

• Vortex jets generated by edge defects in current-carrying superconductor thin strips