Hybridisation in two-band Hubbard models with different bandwidths

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 (4)

• Orbital selective Mott transition in multi-band systems: slave-spin representation and dynamical mean-field theory
• Dynamical behavior across the Mott transition of two bands with different bandwidths
• Orbital-selective Mott-Hubbard transition in the two-band Hubbard model
• Orbital-selective Mott transitions in the anisotropic two-band Hubbard model at finite temperatures

Cited by in corpus (8)

• Selective Mott transition and heavy fermions
• Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model
• Emergence of a common energy scale close to the orbital-selective Mott transition
• 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
• Two-orbital Systems with Crystal Field Splitting and Interorbital Hopping
• 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