187 citations · 863 across the 21 of their papers we have counts for
6 papers · 1 filter
Kondo screening and Magnetism at Interfaces
A. Euverte, F. Hébert, S. Chiesa +2
The nature of magnetic order and transport properties near surfaces is a topic of great current interest. Here we model metal-insulator interfaces with a multi-layer system governe…
Magnetic and Transport Properties of a Coupled Hubbard Bilayer with Electron and Hole Doping
K. Bouadim, G. G. Batrouni, F. Hebert +1
The single band, two dimensional Hubbard Hamiltonian has been extensively studied as a model for high temperature superconductivity. While Quantum Monte Carlo simulations within th…
Metallic phase in the two-dimensional ionic Hubbard model
K. Bouadim, N. Paris, F. Hebert +2
We investigate the phases of the ionic Hubbard model in a two-dimensional square lattice using determinant quantum Monte Carlo (DQMC). At half-filling, when the interaction strengt…
Quantum Monte Carlo Study of an Interaction-Driven Band Insulator to Metal Transition
N. Paris, K. Bouadim, F. Hebert +2
We study the transitions from band insulator to metal to Mott insulator in the ionic Hubbard model on a two dimensional square lattice using determinant Quantum Monte Carlo. Evalua…
Coexistence of s-wave Superconductivity and Antiferromagnetism
M. Feldbacher, F. F. Assaad, F. Hebert +1
We study the phase diagram of a new model that exhibits a first order transition between s-wave superconducting and antiferromagnetic phases. The model, a generalized Hubbard model…
Constrained-path quantum Monte Carlo simulations of the zero-temperature disordered two-dimensional Hubbard model
M. Enjalran, F. Hebert, G. G. Batrouni +2
We study the effects of disorder on long-range antiferromagnetic correlations in the half-filled, two dimensional, repulsive Hubbard model at T=0. A mean field approach is first em…