Disordered vortex matter out of equilibrium: a Langevin molecular dynamics study
Abstract
We discuss the use of Langevin molecular dynamics in the investigation of the non-equilibrium properties of disordered vortex matter. Here, our special focus is set on values of system parameters that are realistic for disordered high-Tc superconductors such as YBCO. Using a discretised elastic line model, we study different aspects of vortices far from thermal equilibrium. On the one hand, we investigate steady-state properties of driven magnetic flux lines in a disordered environment, namely the current–voltage characteristics, the gyration radius and the pinning time statistics. On the other hand, we study the complex relaxation processes and glassy-like dynamics that emerge in type-II superconductors due to the intricate competition between the long-range vortex–vortex repulsion and flux pinning due to randomly placed point defects. To this end, we consider different types of sudden perturbations: temperature, magnetic field and external current quenches.
- Authors:
-
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Univ. of Oxford (United Kingdom)
- Publication Date:
- Research Org.:
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1855166
- Grant/Contract Number:
- FG02-09ER46613; SC0002308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Molecular Simulation
- Additional Journal Information:
- Journal Volume: 42; Journal Issue: 16; Journal ID: ISSN 0892-7022
- Publisher:
- Taylor & Francis
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; Langevin molecular dynamics; disordered vortex matter; type-II superconductors; pinning statistics; relaxation processes
Citation Formats
Assi, Hiba, Chaturvedi, Harshwardhan, Dobramysl, Ulrich, Pleimling, Michel, and Täuber, Uwe C. Disordered vortex matter out of equilibrium: a Langevin molecular dynamics study. United States: N. p., 2016.
Web. doi:10.1080/08927022.2015.1119826.
Assi, Hiba, Chaturvedi, Harshwardhan, Dobramysl, Ulrich, Pleimling, Michel, & Täuber, Uwe C. Disordered vortex matter out of equilibrium: a Langevin molecular dynamics study. United States. https://doi.org/10.1080/08927022.2015.1119826
Assi, Hiba, Chaturvedi, Harshwardhan, Dobramysl, Ulrich, Pleimling, Michel, and Täuber, Uwe C. Wed .
"Disordered vortex matter out of equilibrium: a Langevin molecular dynamics study". United States. https://doi.org/10.1080/08927022.2015.1119826. https://www.osti.gov/servlets/purl/1855166.
@article{osti_1855166,
title = {Disordered vortex matter out of equilibrium: a Langevin molecular dynamics study},
author = {Assi, Hiba and Chaturvedi, Harshwardhan and Dobramysl, Ulrich and Pleimling, Michel and Täuber, Uwe C.},
abstractNote = {We discuss the use of Langevin molecular dynamics in the investigation of the non-equilibrium properties of disordered vortex matter. Here, our special focus is set on values of system parameters that are realistic for disordered high-Tc superconductors such as YBCO. Using a discretised elastic line model, we study different aspects of vortices far from thermal equilibrium. On the one hand, we investigate steady-state properties of driven magnetic flux lines in a disordered environment, namely the current–voltage characteristics, the gyration radius and the pinning time statistics. On the other hand, we study the complex relaxation processes and glassy-like dynamics that emerge in type-II superconductors due to the intricate competition between the long-range vortex–vortex repulsion and flux pinning due to randomly placed point defects. To this end, we consider different types of sudden perturbations: temperature, magnetic field and external current quenches.},
doi = {10.1080/08927022.2015.1119826},
journal = {Molecular Simulation},
number = 16,
volume = 42,
place = {United States},
year = {Wed Aug 17 00:00:00 EDT 2016},
month = {Wed Aug 17 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
Critical scaling and aging near the flux-line-depinning transition
journal, January 2020
- Chaturvedi, Harshwardhan; Dobramysl, Ulrich; Pleimling, Michel
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Dynamical regimes of vortex flow in type-II superconductors with parallel twin boundaries
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