Dynamics of a nanoparticle as a one-spin system and beyond
| dc.creator | Kachkachi, H. | |
| dc.date | 2003-07-18 | |
| dc.date.accessioned | 2026-07-25T15:15:38Z | |
| dc.description | We review some recent results beyond the now established theory of magnetization switching of a nanoparticle within the single-spin approximation. The first extension is that of the Stoner-Wohlfarth model for magnetization static switching under applied magnetic field including the effect of temperature at long-time scales. The second concerns a generalization of the Néel-Brown model for thermoactivated dynamic magnetization switching to include the effect of exchange interaction in the framework of Langer's theory in the intermediate-to-high damping limit. We finally argue why the single-spin approximation is not appropriate for very small nanoparticles. | |
| dc.description | 35 pages, 7 eps figures. Review article to appear in a special issue of J. Mol. Liquids | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0307457 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0307457 | |
| dc.identifier | J. Mol. Liquids 114 (2004) 113-130 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/32393 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Materials Science | |
| dc.title | Dynamics of a nanoparticle as a one-spin system and beyond | |
| dc.type | text |