We employ dynamical mean field theory (DMFT) with a Quantum Monte Carlo (QMC) atomic solver to investigate the finite temperature Mott transition in the Hubbard model with the nearest neighbor hopping on a triangular lattice at half-filling. We estimate the value of the critical interaction to be Uc=12.0±0.5 in units of the hopping amplitude t through the evolution of the magnetic moment, spectral function, internal energy and specific heat as the interaction U and temperature T are varied. This work also presents a comparison between DMFT and finite size determinant Quantum Monte Carlo (DQMC) and a discussion of the advantages and limitations of both methods.
@article{arxiv.cond-mat/0604609,
title = {Dynamical mean field study of the Mott transition in the half-filled Hubbard model on a triangular lattice},
author = {K. Aryanpour and W. E. Pickett and R. T. Scalettar},
journal= {arXiv preprint arXiv:cond-mat/0604609},
year = {2009}
}