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arXiv · 0906.2966

Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model

Eberhard Jakobi·Nils Blümer·Peter van Dongen
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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.

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Eberhard Jakobi, Nils Blümer, Peter van Dongen. 2009-09-22. Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model. https://doi.org/10.1103/physrevb.80.115109

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