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RESEARCH PRODUCT
Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model
N. BlümerEberhard JakobiPeter Van Dongensubject
PhysicsHubbard modelCondensed matter physicsStrongly Correlated Electrons (cond-mat.str-el)Mott insulatorQuantum Monte CarloFOS: Physical sciencesCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsMott transitionCondensed Matter - Other Condensed MatterCondensed Matter - Strongly Correlated ElectronsQuasiparticleStrongly correlated materialCondensed Matter::Strongly Correlated ElectronsMetal–insulator transitionJaynes–Cummings–Hubbard modelOther Condensed Matter (cond-mat.other)description
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-16 |