@InProceedings{Granato:2017:BoFlEf,
author = "Granato, Enzo",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Bond and flux-disorder effects on the superconductor-insulator
transition of a honeycomb array of Josephson junctions",
year = "2017",
organization = "International Conference on Strongly Correlated Electron Systems
(SCES)",
abstract = "We study the effects of disorder on the zero-temperature quantum
phase transition of a honeycomb array of Josephson junctions with
an average of f flux quantum per plaquette. Bond disorder due to
spatial variations in the Josephson couplings and magnetic flux
disorder due to variations in the plaquette areas are considered.
Path integral MC simulations of the equivalent (2+1)D classical
model are used. Bond disorder leads to a rounding of the
first-order phase transition for f=1/3 to a continuous transition.
For integer f, the decrease of the critical coupling parameter
with flux disorder is significantly different from that of the the
same model defined on a square lattice. The results are compared
with recent experiments on nanohole thin films with geometrical
disorder and external magnetic field.",
conference-location = "Prague",
conference-year = "17-21 July",
language = "en",
urlaccessdate = "27 abr. 2024"
}