Simple microscopic model of the magneto-electric effect in non-collinear magnets
| dc.creator | Kaplan, T. A. | |
| dc.creator | Mahanti, S. D. | |
| dc.date | 2006-08-10 | |
| dc.date.accessioned | 2026-07-07T07:19:37Z | |
| dc.date.available | 2026-07-07T07:19:37Z | |
| dc.description | A 2-site 2-electron model with s- and p-states on each site, having constrained average site-spins S_a, S_b, with angle theta between them, simpler than the previous closely-related model of Katsura et al (KNB), is considered. Intra-site Coulomb repulsion and inter-site spin-orbit coupling V_(SO) are included. The ground state has an electric dipole moment pi consistent with the result of KNB, pi proportional to R x (S_a x S_b) = f, R connecting the two sites, and application to a spiral leads to ferroelectric polarization with direction f, also in agreement with the previous result. However, the present result shows the expected behavior pi goes to 0 as V_(SO) goes to 0, unlike the previous one. | |
| dc.description | 4 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0608227 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0608227 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114688 | |
| dc.subject | Other Condensed Matter | |
| dc.title | Simple microscopic model of the magneto-electric effect in non-collinear magnets | |
| dc.type | text |