The classical two-sublattice Landau-Lifshitz-Bloch equation for all temperatures

Nieves, Pablo; Atxitia, Unai; Chantrell, Roy W.; Chubikalo-Fresenko, Oksana

The classical two-sublattice Landau-Lifshitz-Bloch equation for all temperatures

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2015

Autor:innen

Nieves, Pablo

Atxitia, Unai

Chantrell, Roy W.

Chubikalo-Fresenko, Oksana

DOI (zitierfähiger Link)

10.1063/1.4930973

Sammlungen

Zukunftskolleg
Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Low Temperature Physics ; 41 (2015), 9. - S. 739-744. - ISSN 0022-2291. - eISSN 1573-7357

Zusammenfassung

Micromagnetic modeling has proved itself as a widely used tool, complimentary in many respects to experimental measurements. The Landau-Lifshitz equation provides a basis for this modeling, especially where the dynamical behaviour is concerned. However, this approach is strictly valid only for zero temperature and for high temperatures must be replaced by a more thermodynamically consistent approach such as the Landau-Lifshitz-Bloch (LLB) equation. Here we review the recently derived LLB equation for two-sublattice systems and extend its derivation for temperatures above the Curie temperature. We present comparison with many-body atomistic simulations and show that this equation can describe the ultra-fast switching in ferrimagnets, observed experimentally.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Curie point, Magnetization dynamics, Ferrimagnetism, Langevin equation, Ferromagnetism

Zitieren

ISO 690

NIEVES, Pablo, Unai ATXITIA, Roy W. CHANTRELL, Oksana CHUBIKALO-FRESENKO, 2015. The classical two-sublattice Landau-Lifshitz-Bloch equation for all temperatures. In: Journal of Low Temperature Physics. 41(9), pp. 739-744. ISSN 0022-2291. eISSN 1573-7357. Available under: doi: 10.1063/1.4930973

BibTex

@article{Nieves2015class-32370,
  year={2015},
  doi={10.1063/1.4930973},
  title={The classical two-sublattice Landau-Lifshitz-Bloch equation for all temperatures},
  number={9},
  volume={41},
  issn={0022-2291},
  journal={Journal of Low Temperature Physics},
  pages={739--744},
  author={Nieves, Pablo and Atxitia, Unai and Chantrell, Roy W. and Chubikalo-Fresenko, Oksana}
}

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