Chaturvedi, HarshwardhanDobramysl, UlrichPleimling, Michel J.Täuber, Uwe C.2019-12-292019-12-292019-12-03http://hdl.handle.net/10919/96233We utilize Langevin molecular dynamics simulations to study dynamical critical behavior of magnetic flux lines near the depinning transition in type-II superconductors subject to randomly distributed attractive point defects. We employ a coarse-grained elastic line Hamiltonian for the mutually repulsive vortices and purely relaxational kinetics. In order to infer the stationary-state critical exponents for the continuous non-equilibrium depinning transition at zero temperature T = 0 and at the critical driving current density j_c, we explore two-parameter scaling laws for the flux lines' gyration radius and mean velocity as functions of the two relevant scaling fields T and j - j_c. We also investigate critical aging scaling for the two-time height auto-correlation function in the early-time non-equilibrium relaxation regime to independently measure critical exponents. We provide numerical exponent values for the distinct universality classes of non-interacting and repulsive vortices.In Copyrightcond-mat.stat-mechcond-mat.supr-conArticle2019-12-29Tauber, Uwe [0000-0001-7854-2254]Pleimling, Michel [0000-0003-3191-3390]