Scaling of Nonlinear Longitudinal and Hall Resistivities near the Vortex Glass Transition
Abstract
We show that the longitudinal current-voltage characteristics of superconductors in mixed state have the general form of extended power law. Isotherms simulated from this nonlinear equation fit the experimental I-V data of Strachan et al. [ Phys. Rev. Lett. 87, 067007 (2001)]. We determine the average pinning force in the flux creep and strong pinning regime and discuss both the puzzling scaling behavior xyxxβ and a recently found new scaling relationship of nonlinear Hall resistivity xy(T).
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