Abstract
Externally driven glassy systems may undergo nonequilibrium phase transitions (NEPTs). In particular, ac-driven systems display special features, such as those observed in the vortex matter of , where oscillatory drives reorganize the system into partially ordered vortex lattices. We provide experimental evidence for this dynamic reorganization and we show an unambiguous signature of its connection with an NEPT driven by ac forces. We perform a scaling analysis and we estimate critical exponents for this transition. Our results share similarities with some glass-to-viscous-liquid NEPTs and invite a search for similar physics in other elastic disordered media.
- Received 18 September 2019
- Revised 12 December 2019
- Accepted 28 January 2020
DOI:https://doi.org/10.1103/PhysRevB.101.060502
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