Publikation: The Landau–Lifshitz equation in atomistic models
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Datum
2015
Autor:innen
Ellis, Matthew O. A.
Evans, Richard F. L.
Ostler, Thomas A.
Barker, Joseph
Chubikalo-Fresenko, Oksana
Chantrell, Roy W.
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Journal of Low Temperature Physics. 2015, 41, 705. ISSN 0022-2291. eISSN 1573-7357. Available under: doi: 10.1063/1.4930971
Zusammenfassung
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.
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Fachgebiet (DDC)
530 Physik
Schlagwörter
Classical spin models, Langevin equation, Boltzmann equations, Anisotropy, Exchange interactions
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ELLIS, Matthew O. A., Richard F. L. EVANS, Thomas A. OSTLER, Joseph BARKER, Unai ATXITIA, Oksana CHUBIKALO-FRESENKO, Roy W. CHANTRELL, 2015. The Landau–Lifshitz equation in atomistic models. In: Journal of Low Temperature Physics. 2015, 41, 705. ISSN 0022-2291. eISSN 1573-7357. Available under: doi: 10.1063/1.4930971BibTex
@article{Ellis2015Landa-32363,
year={2015},
doi={10.1063/1.4930971},
title={The Landau–Lifshitz equation in atomistic models},
volume={41},
issn={0022-2291},
journal={Journal of Low Temperature Physics},
author={Ellis, Matthew O. A. and Evans, Richard F. L. and Ostler, Thomas A. and Barker, Joseph and Atxitia, Unai and Chubikalo-Fresenko, Oksana and Chantrell, Roy W.},
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