Mechanism of the Verwey transition in magnetite
| dc.creator | Piekarz, P. | |
| dc.creator | Parlinski, K. | |
| dc.creator | Oles, A. M. | |
| dc.date | 2006-10-13 | |
| dc.date.accessioned | 2026-07-07T07:27:30Z | |
| dc.date.available | 2026-07-07T07:27:30Z | |
| dc.description | By combining {\it ab initio} results for the electronic structure and phonon spectrum with the group theory, we establish the origin of the Verwey transition in Fe$_3$O$_4$. Two primary order parameters with $X_3$ and $Δ_5$ symmetries are identified. They induce the phase transformation from the high-temperature cubic to the low-temperature monoclinic structure. The on-site Coulomb interaction $U$ between 3d electrons at Fe ions plays a crucial role in this transition -- it amplifies the coupling of phonons to conduction electrons and thus opens a gap at the Fermi energy. {\it Published in Phys. Rev. Lett. {\bf 97}, 156402 (2006).} | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0610363 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0610363 | |
| dc.identifier | Phys. Rev. Lett. 97, 156402 (2006) | |
| dc.identifier | doi:10.1103/PhysRevLett.97.156402 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/117397 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Mechanism of the Verwey transition in magnetite | |
| dc.type | text |