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Dynamical Phase Transition in a Driven Disordered Vortex Lattice

Seungoh Ryu·M. Hellerqvist·S. Doniach·A. Kapitulnik·D. Stroud
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Abstract

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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Seungoh Ryu, M. Hellerqvist, S. Doniach, A. Kapitulnik, D. Stroud. 1996-06-18. Dynamical Phase Transition in a Driven Disordered Vortex Lattice. https://doi.org/10.1103/physrevlett.77.5114

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