Abstract
The dynamic critical phenomena near depinning transition in two-dimensional fully frustrated square lattice Coulomb gas model with disorders was studied using Monte Carlo technique. The ground state of the model system with disorder σ = 0.3 is a disordered state. The dependence of charge current density J on electric field E was investigated at low temperatures. The nonlinear J – E behavior near critical depinning field can be described by a scaling function proposed for three-dimensional flux line system [M.B. Luo, X. Hu, Phys. Rev. Lett. 98 (2007) 267002]. We evaluated critical exponents and found an Arrhenius creep motion for field region E c / 2 < E < E c . The scaling law of the depinning transition is also obtained from the scaling function.
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