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ELLIS, M O A, EVANS, R F L, OSTLER, Thomas, BARKER, J, ATXITIA, U and CHANTRELL, R W (2015). The Landau-Lifshitz equation in atomistic models. Low Temperature Physics, 41 (9), 1-9.
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Ellis et al. - 2015 - The Landau-Lifshitz equation in atomistic models.pdf - Published Version All rights reserved. Download (269kB) | Preview |
Abstract
The Landau–Lifshitz (LL) equation, originally proposed at the macrospin level, is increasingly used in Atomistic Spin Dynamic (ASD) models. These models are based on a spin Hamiltonian featuring atomic spins of fixed length, with the exchange introduced using the Heisenberg formalism. ASD models are proving a powerful approach to the fundamental understanding of ultrafast magnetization dynamics, including the prediction of the thermally induced magnetization switching phenomenon in which the magnetization is reversed using an ultra-fast laser pulse in the absence of an externally applied field. This paper outlines the ASD model approach and considers the role and limitations of the LL equation in this context.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | atomistic spin models,landau,lifshitz equation |
| Departments - Does NOT include content added after October 2018: | Faculty of Science, Technology and Arts > Department of Engineering and Mathematics |
| Identification Number: | https://doi.org/10.1063/1.4930971 |
| Page Range: | 1-9 |
| Depositing User: | Thomas Ostler |
| Date Deposited: | 31 Mar 2017 09:08 |
| Last Modified: | 18 Mar 2021 15:46 |
| URI: | https://shura.shu.ac.uk/id/eprint/15277 |
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