The effect of deformations of vortices on vortex-pair production and nonlinear flux-flow resistivity are investigated. It is found that the random average of the collective pinning potential enhances the vortex-pair production rate, however, the strength of the random correlation of potential and that of the pinning force suppress it.
Relation:
Physics Letters. Section A: General, Atomic and Solid State Physics 310(1), pp.80-84