Dynamical Phase Transition in a Fully Frustrated Square Josephson Array

Details Dynamical Phase Transition in a Fully Frustrated Square Josephson Array Dynamical Phase Transition in a Fully Frustrated Square Josephson Array

1999-06-04

arxiv.org/abs/cond-mat/9906068v1

Physics

Condensed Matter

Superconductivity

9 pages, 7 Postscript figures

Scientific paper

We study dynamical phase transitions at temperature T = 0 in a fully frustrated square Josephson junction array subject to a driving current density which has nonzero components parallel to both axes of the lattice. Our numerical results show clear evidence for three dynamical phases: a pinned vortex lattice characterized by zero time-averaged voltages, a ``plastic'' phase in which both voltages are nonzero, and a moving lattice phase in which only one of the time-average voltage components is nonzero. The last of these has a finite transverse critical current.

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