Long-range antiferromagnetic interactions in ZnFe2O4 and CdFe2O4
| dc.creator | Cheng, Ching | |
| dc.date | 2008-04-25 | |
| dc.date | 2008-07-15 | |
| dc.date.accessioned | 2026-07-07T09:49:58Z | |
| dc.date.available | 2026-07-07T09:49:58Z | |
| dc.description | For the first time, the Fe-Fe interactions in the geometrically frustrated antiferromagnetic systems of zinc and cadmium ferrites are determined quantitatively by the first-principles methods of density functional theory. Both the generalized gradient approximation (GGA) as well as GGA plus the onesite Coulomb interaction (GGA+U) are considered for the exchange-correlation energy functional. The interactions up to third neighbours are found to be all antiferromagnetic for both materials, regardless of which approximation scheme (GGA or GGA+U) is used. Surprisingly, the thirdneighbour interactions are estimated to be much stronger than the second-neighbour interactions and on the same order in magnitude as the first-neighbour interactions. | |
| dc.description | 4 pages, 1 figures | |
| dc.identifier | https://arxiv.org/abs/0804.4059 | |
| dc.identifier | http://arxiv.org/abs/0804.4059 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/164790 | |
| dc.subject | Materials Science | |
| dc.title | Long-range antiferromagnetic interactions in ZnFe2O4 and CdFe2O4 | |
| dc.type | text |