Dynamic transition and shapiro-step melting in a frustrated Josephson-junction array

  title={Dynamic transition and shapiro-step melting in a frustrated Josephson-junction array},
  author={J. S. Lim and M.Y. Choi and J. Choi and B. J. Kim},
  journal={Physical Review B},
We consider a two-dimensional fully frustrated Josephson-junction array driven by combined direct and alternating currents. Interplay between the mode locking phenomenon, manifested by giant Shapiro steps in the current-voltage characteristics, and the dynamic phase transition is investigated at finite temperatures. Melting of Shapiro steps due to thermal fluctuations is shown to be accompanied by the dynamic phase transition, the universality class of which is also discussed. 
7 Citations

Figures from this paper

We investigate numerically the dynamic properties of a system of globally coupled oscillators driven by periodic symmetry-breaking fields in the presence of noise. The phase distribution of the
Resonance and Rectification in a Two-Dimensional Frenkel—Kontorova Model with Triangular Symmetry
The mode-locking phenomena in the dc- and ac-driven overdamped two-dimensional Frenkel-Kontorova model with triangular symmetric structures are studied. The obtained results show that the transverse
New Monte Carlo Simulations to a Generalized XY Model
A new combination Monte Carlo (MC) technique of the classical Metropolis algorithm and the Swendsen–Wang cluster algorithm is proposed. Upon application of the MC technique, the thermodynamic
Complexity of Shapiro steps.
By calculating the Kolmogorov complexity of certain areas in the response function, the aim is to provide scientists, particularly experimentalists, with an unconventional, but practical and easy tool for examination of Shapiro steps in real systems.
Synchronization in the Frenkel–Kontorova type system
Synchronization in the Frenkel–Kontorova model is studied by molecular-dynamics simulations. We employ the similarity function to investigate the lag synchronization (LS) and complete
Heat Conductivity in a Two-Dimensional Finite-Size Spin System with Dzyaloshinskii Moriya Interactions
Heat conductivity is studied by direct numerical simulations in a two-dimensional model with chiral Dzyaloshinskii–Moriya (DM) spin superexchange interactions for various DM strengths and finite