Non-local screening channels and metal-insulator transition in VO2
| dc.creator | Mossanek, R. J. O. | |
| dc.creator | Abbate, M. | |
| dc.date | 2006-01-26 | |
| dc.date.accessioned | 2026-07-07T06:57:48Z | |
| dc.date.available | 2026-07-07T06:57:48Z | |
| dc.description | We studied the changes in the electronic structure of VO2 across the metal-insulator transition. The main technique was cluster model calculations with non-local screening channels. The calculation included a screening from a delocalized state at the Fermi level in the metallic phase, and a screening from the neighboring V site within the V-V dimmer in the insulating phase. Both the coherent and incoherent features in the V 3d band of metallic VO2 are well screened states, whereas the true poorly screened 3d0 state appears deeper in energy due to the relatively large U. The non-local screening state in the insulating phase involves U and consequently appears at higher energies. The change in the non-local screening channel opens the band gap originating the insulating phase. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0601611 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0601611 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/107107 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Non-local screening channels and metal-insulator transition in VO2 | |
| dc.type | text |