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Title: Driven diffusion in the two-dimensional lattice Coulomb gas: A model for flux flow in superconducting networks

Journal Article · · Physical Review, B: Condensed Matter; (United States)
 [1];  [2]
  1. Center for Theoretical Physics, Seoul National University, Seoul 151-742 (Korea, Republic of)
  2. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States)

We carry out driven-diffusion Monte Carlo simulations of the two-dimensional classical lattice Coulomb gas in an applied uniform electric field, as a model for vortex motion due to an applied dc current in a periodic superconducting network. A finite-size version of dynamic scaling is used to extract the dynamic critical exponent [ital z], and infer the nonlinear response at the transition temperature. We consider the Coulomb gases [ital f]=0 and [ital f]=1/2, corresponding to a superconducting network with an applied transverse magnetic field of zero, and one-half flux quantum per unit cell, respectively.

DOE Contract Number:
FG02-89ER14017
OSTI ID:
7025050
Journal Information:
Physical Review, B: Condensed Matter; (United States), Vol. 50:5; ISSN 0163-1829
Country of Publication:
United States
Language:
English