Relaxation dynamics of vortex lines in disordered type-II superconductors following magnetic field and temperature quenches
Journal Article
·
· Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Virginia Tech, Department of Physics
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Univ. of Oxford (United Kingdom)
We study the effects of rapid temperature and magnetic field changes on the nonequilibrium relaxation dynamics of magnetic vortex lines in disordered type-II superconductors by employing an elastic line model and performing Langevin molecular dynamics simulations. In a previously equilibrated system, either the temperature is suddenly changed or the magnetic field is instantaneously altered which is reflected in adding or removing flux lines to or from the system. Here, the subsequent aging properties are investigated in samples with either randomly distributed pointlike or extended columnar defects, which allows us to distinguish the complex relaxation features that result from either type of pinning centers. One-time observables such as the radius of gyration and the fraction of pinned line elements are employed to characterize steady-state properties, and two-time correlation functions such as the vortex line height autocorrelations and their mean-square displacement are analyzed to study the nonlinear stochastic relaxation dynamics in the aging regime.
- Research Organization:
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- SC0002308
- OSTI ID:
- 1855163
- Alternate ID(s):
- OSTI ID: 1226178
- Journal Information:
- Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, Journal Name: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics Journal Issue: 5 Vol. 92; ISSN 1539-3755
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Relaxation dynamics in type-II superconductors with point-like and correlated disorder
Flux line relaxation kinetics following current quenches in disordered type-II superconductors
Relaxation and glassy dynamics in disordered type-II superconductors
Journal Article
·
Tue May 21 20:00:00 EDT 2013
· European Physical Journal. B, Condensed Matter and Complex Systems
·
OSTI ID:1855159
Flux line relaxation kinetics following current quenches in disordered type-II superconductors
Journal Article
·
Thu Aug 18 20:00:00 EDT 2016
· Journal of Statistical Mechanics
·
OSTI ID:1855177
Relaxation and glassy dynamics in disordered type-II superconductors
Journal Article
·
Thu Nov 17 19:00:00 EST 2011
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:1855156