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We employ an elastic line model to investigate the steady-state propertiesand non-equilibrium relaxation kinetics of magnetic vortex lines in disorderedtype-II superconductors using Langevin molecular dynamics (LMD). We extract thedependence of the mean vortex line velocity and gyration radius as well as themean-square displacement in the steady state on the driving current, andmeasure the vortex density and height autocorrelations in the aging regime. Westudy samples with either randomly distributed point-like or columnarattractive pinning centers, which allows us to distinguish the complexrelaxation features of interacting flux lines subject to extended vs.uncorrelated disorder. Additionally, we find that our new LMD findings matchearlier Monte Carlo (MC) simulation data well, verifying that these twomicroscopically quite distinct simulation methods lead to macroscopically verysimilar results for non-equilibrium vortex matter.

Relaxation dynamics in type-II superconductors with point-like and correlated disorder