Characterization of relaxation processes in interacting vortex matter through a time-dependent correlation length
作者： Michel Pleimling , Uwe C. Tauber
DOI: 10.1088/1742-5468/2015/09/P09010
关键词: Vortex 、 Correlation function (statistical mechanics) 、 Superconductivity 、 Relaxation (physics) 、 Line (formation) 、 Space (mathematics) 、 Physics 、 Monte Carlo method 、 Pinning force 、 Condensed matter physics
摘要: Vortex lines in type-II superconductors display complicated relaxation processes due to the intricate competition between their mutual repulsive interactions and pinning attractive point or extended defects. We perform extensive Monte Carlo simulations for an interacting elastic line model with either point-like columnar centers. From measurements of space- time-dependent height-height correlation function lateral flux fluctuations, we extract a characteristic length that use investigate different non-equilibrium regimes. The specific time dependence this disorder configurations displays features provide novel diagnostic tool distinguish centers
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