William G. Van der Sluys, Alfred P. Sattelberger, et al.
Polyhedron
Paper
Enhanced flux creep and nonequilibrium optical response in YBaCuO epitaxial films
Abstract
Two novel flux creep related phenomena in YBa2Cu3O7-δ films are presented: a sharp onset of nonequilibrium optical response and a thermally activated electrical resistivity with logarithmic current dependence of the activation energy. This nonlinear current dependence is significantly different from the predictions of the standard flux creep model. © 1989.