Metastability and Glassy Behavior of a Driven Flux-Line Lattice
W. Henderson(1), E.Y. Andrei(1) M.J. Higgins(2), S., Bhattacharya(2) ((1) Rutgers University, Piscataway NJ, (2) NEC Research, Institute, Princeton NJ)
TL;DR
This paper investigates the metastable states and glassy behavior of flux-line lattices in 2H-NbSe2, revealing distinct ordered states, metastability, and current-induced annealing effects in the vortex matter.
Contribution
It provides new insights into the metastability and glassy dynamics of flux-line lattices, identifying two distinct states and their response to current-induced annealing.
Findings
Identification of two distinct flux-line lattice states with different orderings.
Observation of strong metastability and history dependence near the peak effect.
Current-induced annealing drives the system towards a stable state with diverging annealing time near a threshold.
Abstract
Strong metastability and history dependence are observed in DC and pulsed transport studies of flux-line lattices in 2H-, leading to the identification of two distinct states of the lattice with different spatial ordering. The metastability is most pronounced upon crossing a transition line marked by a large jump in the critical current (the peak effect). Current induced annealing of the metastable state towards the stable state is observed with a strongly current dependent annealing time, which diverges as a threshold current is approached from above.
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