Hybridisation in two-band Hubbard models with different bandwidths
arXiv:0707.0965 · doi:10.1088/0953-8984/19/43/436206
Abstract
We investigate the orbital selective Mott transition in two-band Hubbard models by means of the Gutzwiller variational theory. In particular, we study the influence of a finite local hybridisation between electrons in different orbitals on the metal-insulator transition.
11 pages, 12 figures, submitted to Journal of Physics: Condensed Matter
References in corpus (11)
- Orbital-selective Mott transitions in the degenerate Hubbard model
- Orbital selective Mott transition in multi-band systems: slave-spin representation and dynamical mean-field theory
- Multi-band Gutzwiller wave functions for general on-site interactions
- Spin, charge and orbital fluctuations in a multi-orbital Mott insulator
- Dynamical behavior across the Mott transition of two bands with different bandwidths
- Orbital-selective Mott-Hubbard transition in the two-band Hubbard model
- Single Mott Transition in Multi-Orbital Hubbard Model
- Orbital-selective Mott transitions in the anisotropic two-band Hubbard model at finite temperatures
- Influence of Hybridization on the Properties of the Spinless Falicov-Kimball Model
- Absence of orbital-selective Mott transition in Ca_2-xSr_xRuO4
- Gutzwiller variational theory for the Hubbard model with attractive interaction
Cited by in corpus (13)
- Selective Mott transition and heavy fermions
- Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model
- Complete phase diagram for three-band Hubbard model with orbital degeneracy lifted by crystal field splitting
- Emergence of a common energy scale close to the orbital-selective Mott transition
- Orbital-selective Mott transitions in a doped two-band Hubbard model with crystal field splitting
- Approximate solution of variational wave functions for strongly correlated systems: Description of bound excitons in metals and insulators
- Analytical slave-spin mean-field approach to orbital selective Mott insulators
- Numerical minimisation of Gutzwiller energy functionals
- Two-orbital Systems with Crystal Field Splitting and Interorbital Hopping
- The time-dependent Gutzwiller theory for multi-band Hubbard models
- Effect of the exchange hole on the Gutzwiller approximation in one dimension
- Competition between Hund's coupling and Kondo effect in a one-dimensional extended periodic Anderson model
- Efficient treatment of the high-frequency tail of the self-energy function and its relevance for multi-orbital models