# Intermediate Phase in Interacting Dirac Fermions with Staggered Potential

## TL;DR

This study uses quantum Monte Carlo simulations to uncover an intermediate metallic phase driven by electronic correlations in interacting Dirac fermions with staggered potential, revealing a complex phase diagram with potential experimental implications.

## Contribution

The paper identifies a novel intermediate metallic phase in a model of interacting Dirac fermions, driven by correlations, which was not previously characterized.

## Key findings

- Intermediate phase is metallic and driven by correlations.
- Mott insulator phase exhibits antiferromagnetic order.
- Phase diagram shows the intermediate state is robust and experimentally detectable.

## Abstract

By performing exact quantum Monte Carlo simulations of a model of interacting Dirac Fermions with staggered potential, we reveal a novel intermediate phase where the electronic correlations drive a band insulator metallic, and at a larger interaction, drive the metal to Mott insulator. We also show that the Mott insulating phase is antiferromagnetic. A complete phase diagram is achieved by studying the phase transitions at large staggered potential and interaction strengths, which shows that the intermediate state is robust and occupies a large part of the phase diagram and that it should be more feasible to be detected experimentally.