Flux creep in type-II superconductors: self-organized criticality approach
arXiv:cond-mat/0410612 · doi:10.1103/PhysRevB.71.174509
Abstract
We consider the current density distribution function of a flux creep regime in type-II superconductors by mapping the flux creep process to the dynamics of a model with a self-organized criticality. We use an extremal Robin Hood type model which evolves to Been's type critical state to treat magnetic flux penetration into a superconductor and derive an analog of the current-voltage characteristics in the flux creep region.
7 pages, 7 figures