72 citations · 861 across the 58 of their papers we have counts for
21 papers · 1 filter
Disorder-induced superconductor to insulator transition and finite phase stiffness in two-dimensional phase-glass models
Enzo Granato
We study numerically the superconductor to insulator transition in two-dimensional phase-glass (or chiral-glass) models with varying degree of disorder. These models describe the e…
Critical exponents and fine-grid vortex model of the dynamic vortex Mott transition in superconducting arrays
Enzo Granato
We study the dynamic vortex Mott transition in two-dimensional superconducting arrays in a magnetic field with flux quantum per plaquette. The transition is induced by external…
Critical behavior of dynamic vortex Mott transition in superconducting arrays at fractional vortex densities
Enzo Granato
We study the differential resistivity transition of two-dimensional superconducting arrays induced by an external driving current, in the presence of thermal fluctuations and a mag…
Random gauge models of the superconductor-insulator transition in two-dimensional disordered superconductors
Enzo Granato
We study numerically the superconductor-insulator transition in two-dimensional inhomogeneous superconductors with gauge disorder, described by four different quantum rotor models:…
Magnetic flux disorder and superconductor-insulator transition in nanohole thin films
Enzo Granato
We study the superconductor-insulator transition in nanohole ultrathin films in a transverse magnetic field by numerical simulation of a Josephson-junction array model. Geometrical…
Superconductor-insulator transition of Josephson-junction arrays on a honeycomb lattice in a magnetic field
Enzo Granato
We study the superconductor to insulator transition at zero temperature in a Josephson-junction array model on a honeycomb lattice with flux quantum per plaquette. The path int…
Resistive transition in frustrated Josephson-junction arrays on a honeycomb lattice
Enzo Granato
We use driven Monte Carlo dynamics to study the resistive behavior of superconducting Josephson junction arrays on a honeycomb lattice in a magnetic field corresponding to flux…
Spin-size disorder model for granular superconductors with charging effects
Enzo Granato, Giancarlo Jug
A quantum pseudo-spin model with random spin sizes is introduced to study the effects of charging-energy disorder on the superconducting transition in granular superconducting mate…
Phase and vortex correlations in Josephson-junction arrays at irrational frustration
Enzo Granato
Phase coherence and vortex order in a Josephson-junction array at irrational frustration are studied by extensive Monte Carlo simulations using the parallel tempering method. A sca…
Zero-temperature resistive transition in Josephson-junction arrays at irrational frustration
Enzo Granato
We use a driven Monte Carlo dynamics in the phase representation to determine the linear resistivity and current-voltage scaling of a two-dimensional Josephson-junction array at an…
Field-induced superconductor to insulator transition in Josephson-junction ladders
Enzo Granato
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 Ca…
Resistivity scaling and critical dynamics of fully frustrated Josephson-junction arrays with on-site dissipation
Enzo Granato, Daniel Dominguez
We study the scaling behavior and critical dynamics of the resistive transition in Josephson-junction arrays, at f=1/2 flux quantum per plaquette, by numerical simulation of an on-…
Resistive transition in -junction superconductors
Enzo Granato
The resistivity behavior of inhomogeneous superconductors with random junctions, as in high- materials with d-wave symmetry, is studied by numerical simulation of a three-…
Two dynamic exponents in the resistive transition of fully frustrated Josephson-junction arrays
Enzo Granato, Daniel Dominguez
We study the resistive transition in Josephson-junction arrays at flux quantum per plaquette by dynamical simulations of the resistively-shunted-junction model. The current…
Phase-coherence transition in granular superconductors with junctions
Enzo Granato
We study the three-dimensional XY-spin glass as a model for the resistive behavior of granular superconductors containing a random distribution of junctions, as in high- s…
Phase-coherence threshold and vortex-glass state in diluted Josephson-junction arrays in a magnetic field
Enzo Granato, Daniel Dominguez
We study numerically the interplay of phase coherence and vortex-glass state in two-dimensional Josephson-junction arrays with average rational values of flux quantum per plaquette…
Anomalous Sliding Friction and Peak Effect near the Flux Lattice Melting Transition
E. Granato, T. Ala-Nissila, S. C. Ying
Recent experiments have revealed a giant "peak effect" in ultrapure high superconductors. Moreover, the new data show that the peak effect coincides exactly with the melting…
Current-voltage scaling of chiral and gauge-glass models of two-dimensional superconductors
Enzo Granato
The scaling behavior of the current-voltage characteristics of chiral and gauge glass models of disordered superconductors, are studied numerically, in two dimensions. For both mod…
Diluted Josephson-junction arrays in a magnetic field: phase coherence and vortex glass thresholds
M. Benakli, E. Granato, S. R. Shenoy +1
The effects of random dilution of junctions on a two-dimensional Josephson-junction array in a magnetic field are considered. For rational values of the average flux quantum per pl…
Edge effects in a frustrated Josephson junction array with modulated couplings
E. Granato, J. M. Kosterlitz, M. V. Simkin
A square array of Josephson junctions with modulated strength in a magnetic field with half a flux quantum per plaquette is studied by analytic arguments and dynamical simulations.…
Current-voltage characteristics of diluted Josephson-junction arrays: scaling behavior at current and percolation threshold
Enzo Granato, Daniel Dominguez
Dynamical simulations and scaling arguments are used to study the current-voltage (IV) characteristics of a two-dimensional model of resistively shunted Josephson-junction arrays i…