Mott transition in multi-orbital systems
| dc.creator | Liebsch, A. | |
| dc.date | 2003-06-12 | |
| dc.date.accessioned | 2026-07-07T02:51:48Z | |
| dc.date.available | 2026-07-07T02:51:48Z | |
| dc.description | Metal insulator transitions driven by local Coulomb interactions are among the most fascinating phenomena in condensed matter physics. They occur in a large variety of transition metal compounds. Most of these strongly correlated materials consist of valence bands derived from electronic d shells where intra- and inter-orbital Coulomb interactions are equally important and where the crystal structure splits the valence bands into narrow and wide subbands. A fundamental question is whether these systems exhibit a common Mott transition, implying all subbands to be either metallic or insulating, or successive orbital dependent transitions, implying a coexistence region with metallic and insulating behavior present in different subbands. Using the dynamical mean field theory we show that inter-orbital Coulomb interactions lead to a single Mott transition. Nevertheless, the subbands exhibit more or less strongly correlated excitation spectra in the metallic phase and different band gaps in the insulating phase. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0306312 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0306312 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/21602 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Mott transition in multi-orbital systems | |
| dc.type | text |