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→ ⊥ ĉ in layered superconductors, in contrast to the defect-dependent current-driven effects for H→ ∥ ĉ.