# Flux line relaxation kinetics following current quenches in disordered type-II superconductors

Source: [Flux line relaxation kinetics following current quenches in disordered type-II superconductors](<https://www.sota2.com/research/paper/68fa34091e209131ce895060>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:53:50.369Z

Authors: Harshwardhan Chaturvedi, Hiba Assi, Ulrich Dobramysl, Michel Pleimling, Uwe C. T\\"auber

Published: 2016-06-20T13:04:18.000Z

## Abstract

We investigate the relaxation dynamics of magnetic vortex lines in type-II superconductors following rapid changes of the external driving current by means of an elastic line model simulated with Langevin molecular dynamics. A system of flux vortices in a sample with randomly distributed point-like defects is subjected to an external current of appropriate strength for a sufficient period of time so as to be in a moving non-equilibrium steady state. The current is then instantaneously lowered to a value that pertains to either the moving or pinned regime. The ensuing relaxation of the flux lines is studied via one-time observables such as their mean velocity and radius of gyration. We have in addition measured the two-time flux line height autocorrelation function to investigate dynamical scaling and aging behavior in the system, which in particular emerge after quenches into the glassy pinned state.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1606.06100>)

[PDF](<https://arxiv.org/pdf/1606.06100.pdf>)