Dynamical Phase Transition in a Driven Disordered Vortex Lattice

Details Dynamical Phase Transition in a Driven Disordered Vortex Lattice Dynamical Phase Transition in a Driven Disordered Vortex Lattice

1996-06-18

arxiv.org/abs/cond-mat/9606126v1

Physics

Condensed Matter

13 pages, latex, revtex, 4 figures available upon request from ryu@pacific.mps.ohio-state.edu

Scientific paper

10.1103/PhysRevLett.77.5114

Using Langevin dynamics, we have investigated the dynamics of vortices in a disordered two dimensional superconductor subjected to a uniform driving current. The results provide direct numerical evidence for a dynamical phase transition between a plastic flow regime and a moving ``hexatic glass." The simulated current-voltage characteristics are in excellent agreement with recent transport measurements on amorphous ${\rm Mo_{77}Ge_{23}}$ thin film superconductors.

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