Dynamical instability of the flux front in type-II superconductors
Institute of Superconductivity, Department of Physics,
Bar-Ilan University, Ramat Gan 52900, Israel
Accepted: 21 July 1997
It is shown that a plane front of magnetic flux entering into a type-II super conductor manifests an instability. This instability is caused by the positive feedback between the front heating and vortex flux diffusion in the superconductor. The instability gives rise to a spatially inhomogeneous flux state in the sample.
PACS: 74.60.Ge – Flux pinning, flux creep, and flux-line lattice dynamics
© EDP Sciences, 1997