Critical behavior at de-pinning of a driven disordered vortex matter in 2H-NbS2

Abstract

We report unusual jamming in driven ordered vortex flow in 2H-NbS2. Reinitiating movement in these jammed vortices with a higher driving force, and halting it thereafter once again with a reduction in drive, unfolds a critical behavior centered around the de-pinning threshold via divergences in the lifetimes of transient states, validating the predictions of a recent simulation study, which also pointed out a correspondence between plastic de-pinning in vortex matter and the notion of random organization proposed in the context of sheared colloids undergoing diffusive motion.

Phys. Rev. B (in press, 2012). The paper has 14 pages of Text+ Refs. with 4 figures. (Note as some of the figure files are large in size, to enable faster download, the file size has been kept small and the figure resolution are low. The online version of the paper to appear in PRB will contain the higher resolution figures)

References in corpus (4)

• Reversible to Irreversible Flow Transition in Periodically Driven Vortices
• Dynamics of superconducting vortices driven by oscillatory forces in the plastic flow regime
• Nonequilibrium Fluctuation Relation for Sheared Micellar Gel in a Jammed State
• Chaos and plasticity in superconductor vortices: a low-dimensional dynamics

Cited by in corpus (1)

• Pressure dependence of superconducting critical temperature and upper critical field of 2H-NbS2