Superconductor-insulator transition in frustrated Josephson-junction arrays on a honeycomb lattice

  title={Superconductor-insulator transition in frustrated Josephson-junction arrays on a honeycomb lattice},
  author={Enzo Granato},
  journal={Journal of Physics: Conference Series},
  • E. Granato
  • Published 8 December 2014
  • Physics
  • Journal of Physics: Conference Series
The zero-temperature superconductor to insulator transition is studied in a selfcharging model of Josephson-junction arrays on a honeycomb lattice in an external magnetic field corresponding to f flux quantum per plaquette. Path integral Monte Carlo simulations of the equivalent (2+1)-dimensional classical model are used to study the phase transition and critical behavior. For f = 1/3, the transition is first order. For f = 0 and f = 1/2, the transition is second order and the corresponding… 
Measuring the Superconductor-to-Insulator Transition in a Semiconductor Josephson Junction Array
In this thesis I present a new system in which the superconductor-to-insultator transition (SIT) can be studied. The system consists of a well defined array of superconducting islands coupled via


Field-induced superconductor-to-insulator transition in Josephson-junction ladders
The superconductor to insulator transition is studied in a self-charging model for a ladder of Josephson-junctions in presence of an external magnetic field. Path integral Monte Carlo simulations of
Superconductor-to-Insulator Transitions in Non and Fully Frustrated Josephson-Junction Arrays
We have studied resistive transitions in Josephson-junction arrays with different values of x, the ratio of the Josephson coupling energy to the charging energy. In zero magnetic field, we find a
Superfluid-insulator transition of the Josephson-junction array model with commensurate frustration
We have studied the rationally frustrated Josephson-junction array model in the square lattice through Monte Carlo simulations of the (2 + I )-dimensional XY model. For frustration f = 1/4, the model
Superconductor-insulator transition and universal resistance in Josephson-junction arrays in a magnetic field.
The zero-temperature superconducting transition in a Josephson-junction array with half of a flux quantum per plaquette is considered and the critical behavior and the value of the universal resistance at the transition are inferred.
Quantum fluctuations in chains of Josephson junctions
We study the effect of quantum fluctuations of the phase on the low-temperature behavior of two models of Josephson junction chains with Coulomb interactions taken into account. The first model,
Superconducting Pair Correlations in an Amorphous Insulating Nanohoneycomb Film
Results from an amorphous bismuth film system patterned with a nanohoneycomb array of holes are presented, which undergoes a thickness-tuned insulator-superconductor transition.
Zero-temperature transition and correlation-length exponent of the frustrated XY model on a honeycomb lattice
Phase coherence and vortex order in the fully frustrated XY model on a two-dimensional honeycomb lattice are studied by extensive Monte Carlo simulations using the parallel tempering method and
Collapse of the Cooper pair phase coherence length at a superconductor-to-insulator transition
We present investigations of the superconductor to insulator transition (SIT) of uniform a-Bi films using a technique sensitive to Cooper pair phase coherence. The films are perforated with a