# Disorder-induced superconductor to insulator transition and finite phase stiffness in two-dimensional phase-glass models

@article{Granato2020DisorderinducedST, title={Disorder-induced superconductor to insulator transition and finite phase stiffness in two-dimensional phase-glass models}, author={Enzo Granato}, journal={Physical Review B}, year={2020}, volume={102} }

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 effects of gauge disorder in superconductors due to random negative Josephson-junction couplings, or $\pi$ junctions. Two different models are considered, with binary and Gaussian distribution of quenched disorder, having nonzero mean. Monte Carlo simulations in the path-integral representation are used to determine…

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Magnetic-field frustration and chiral-glass to insulator transition in superconducting arrays with random $$\pi $$ junctions

- PhysicsThe European Physical Journal B
- 2021

We study the effects of random $$\pi $$
Josephson junctions and applied magnetic field on the quantum phase transitions of superconducting arrays, described by a two-dimensional phase-glass model.…

## References

SHOWING 1-10 OF 46 REFERENCES

Two-dimensional materials: Not just a phase

- Physics, Materials Science
- 2016

In some two-dimensional materials, there's a puzzling intermediate metallic phase between superconducting and insulating states. Experiments on ultraclean crystalline samples suggest this metallic…

Chiral Ordering of XY Spin Glasses in Two and Three Dimensions —Domain-Wall Renormalization-Group Studies

- Physics
- 1991

The nearest-neighbor XY spin glasses with ± J distribution of interactions are studied in both two and three dimensions by use of the domain-wall renormalization group method at zero temperature,…

Unusual paramagnetic phenomena in granular high-temperature superconductors-A consequence of d- wave pairing?

- Physics
- 1995

This colloquium reviews some unusual paramagnetic phenomena in granular high-temperature superconductors. These are consistently explained by assuming that there is frustration in the coupling…

Quantum fluctuations in chains of Josephson junctions

- Physics
- 1984

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,…

Nature of Orbital-Glass Transition in d-Wave Ceramic Superconductors

- Physics
- 1995

A close connection is pointed out between the orbital-glass state recently proposed for high- T c ceramic superconductors and the chiral-glass state identified in X Y spin glasses. Based on this…

Two-level systems in a spin-glass model. I. General formalism and two-dimensional model

- Physics
- 1977

A spin-glass model with two-dimensional, isotropic spins (XY model) is studied. The model exhibits two-level systems (TLS) which are related to the sense of rotation of the spin direction. The…

Lower critical dimension of Ising spin glasses: a numerical study

- Physics
- 1984

A transfer matrix method is used to study the variation with length scale L of the distribution PL(Jeff) of effective couplings in Ising spin glasses at zero temperature. For a gaussian initial…

Absence of a zero-temperature vortex solid phase in strongly disordered superconducting Bi films

- Physics
- 2000

We present low-temperature measurements of the resistance in magnetic field of superconducting ultrathin amorphous Bi films with normal-state sheet resistances, ${R}_{N},$ near the resistance…

EXISTENCE OF A BOSE METAL AT T=0

- Physics
- 1999

This paper aims to justify the existence of a two-dimensional Bose metal, i.e., a metallic phase made out of Cooper pairs at $T=0.$ To this end, we consider the physics of quantum phase fluctuations…

Numerical Study of Spin and Chiral Order in a Two-Dimensional XY Spin Glass

- Physics
- 1999

The two dimensional XY spin glass is studied numerically by a finite size scaling method at T=0 in the vortex representation which allows us to compute the exact (in principle) spin and chiral domain…