Thermal magnetization fluctuations in thin films and a new physical form for magnetization damping
| dc.creator | Safonov, Vladimir L. | |
| dc.creator | Bertram, H. Neal | |
| dc.date | 2001-03-30 | |
| dc.date | 2001-10-04 | |
| dc.date.accessioned | 2026-07-07T02:40:55Z | |
| dc.date.available | 2026-07-07T02:40:55Z | |
| dc.description | The effect of thermal fluctuations on a thin film magnetoresistive element has been calculated. The technique involves adding to the basic spin dynamics a general form of interaction with a thermal bath. For a general anisotropic magnetic system the resulting equation can be written as a Langevin equation for a harmonic oscillator. Our approach predicts two times smaller noise power at low frequencies than the conventional stochastic Landau-Lifshitz-Gilbert equation. It is shown that equivalent results can be obtained by introducing a tensor phenomenological damping term to the gyromagnetic dynamics driven by a thermal fluctuating field. | |
| dc.description | Some minor changes with notations and comparison with Smith-Arnett result | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0103624 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0103624 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17550 | |
| dc.subject | Materials Science | |
| dc.subject | Statistical Mechanics | |
| dc.title | Thermal magnetization fluctuations in thin films and a new physical form for magnetization damping | |
| dc.type | text |