Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model
Strongly Correlated Electrons
2009-09-22 v2 Other Condensed Matter
Abstract
We extend previous studies on orbital-selective Mott transitions in the paramagnetic state of the half-filled degenerate two-band Hubbard model to the general doped case, using a high-precision quantum Monte Carlo dynamical mean-field theory solver. For sufficiently strong interactions, orbital-selective Mott transitions as a function of total band filling are clearly visible in the band-specific fillings, quasiparticle weights, double occupancies, and spectra. The results are contrasted with those of single-band models for similar correlation strengths.
Keywords
Cite
@article{arxiv.0906.2966,
title = {Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model},
author = {Eberhard Jakobi and Nils Blümer and Peter van Dongen},
journal= {arXiv preprint arXiv:0906.2966},
year = {2009}
}
Comments
12 pages, 12 figures