Investigation of the current-induced nonlinear vortex dynamics in YBa2Cu3O7 single crystals using transport and transmittivity measurements

The current-induced nonlinear vortex dynamics of high-temperature superconductors are investigated in two YBa2Cu3O7 Single crystals: one untwinned and the other with canted columnar defects. Both the electric transport properties and harmonic transmittivities demonstrate unique current-driven effects associated with the intrinsic pinning for (H) over right arrow perpendicular to (c) over cap in layered superconductors, in contrast to the defect-dependent current-driven effects for (H) over right arrow parallel to (c) over cap.