Superconductor-insulator transition of Josephson-junction arrays on a honeycomb lattice in a magnetic field

  title={Superconductor-insulator transition of Josephson-junction arrays on a honeycomb lattice in a magnetic field},
  author={Enzo Granato},
  journal={The European Physical Journal B},
  • E. Granato
  • Published 14 February 2016
  • Physics
  • The European Physical Journal B
Abstract We study the superconductor to insulator transition at zero temperature in a Josephson-junction array model on a honeycomb lattice with f flux quantum per plaquette. The path integral representation of the model corresponds to a (2 + 1)-dimensional classical model, which is used to investigate the critical behavior by extensive Monte Carlo simulations on large system sizes. In contrast to the model on a square lattice, the transition is found to be first order for f = 1 / 3 and… 
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