Phys. Rev. Lett. 80, 105–108 (1998)Glassiness versus Order in Densely Frustrated Josephson ArraysReceived 25 September 1997; published in the issue dated 5 January 1998 We carry out extensive Monte Carlo simulations of the Coulomb gas dual to the uniformly frustrated two-dimensional XY model, for a sequence of frustrations f converging to the irrational (3-√5)/2. We find in these systems a sharp first order equilibrium phase transition to an ordered vortex structure at a Tc which varies only slightly with f. This ordered vortex structure remains, in general, phase incoherent until a lower vortex pinning transition Tp(f) that varies with f. We argue that the glassy behaviors reported for this model in earlier simulations are dynamic effects. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.105
DOI:
10.1103/PhysRevLett.80.105
PACS:
64.60.Cn, 64.70.Pf, 75.10.-b
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