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Atomistic models of ultrafast reversal

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2007

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Kazantseva, Natalia
Chantrell, Roy W.
Chubykalo-Fesenko, Oksana

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-120855
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https://doi.org/10.1002/pssb.200777101
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Physica status solidi (b). 2007, 244(12), pp. 4389-4393. Available under: doi: 10.1002/pssb.200777101

Zusammenfassung

It is shown that the physics of reversal on a picosecond timescale requires the use of atomistic models. The basis of atomistic models is outlined. The model is applied to studies of fast laser heating of magnetic materials. In particular it is demonstrated that the magnetisation vanishes in a timescale of picoseconds, whereas the recovery of the magnetisation can take of the order of 1 ns because of the necessity for the magnetisation to grow from a large number of small nuclei. Finally we review the progress in linking atomistic and micromagnetic models in a step toward creating macroscopic models of magnetic materials at temperatures approaching the Curie temperature.

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530 Physik

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ISO 690KAZANTSEVA, Natalia, Denise HINZKE, Ulrich NOWAK, Roy W. CHANTRELL, Oksana CHUBYKALO-FESENKO, 2007. Atomistic models of ultrafast reversal. In: Physica status solidi (b). 2007, 244(12), pp. 4389-4393. Available under: doi: 10.1002/pssb.200777101
BibTex
@article{Kazantseva2007Atomi-919,
  year={2007},
  doi={10.1002/pssb.200777101},
  title={Atomistic models of ultrafast reversal},
  number={12},
  volume={244},
  journal={Physica status solidi (b)},
  pages={4389--4393},
  author={Kazantseva, Natalia and Hinzke, Denise and Nowak, Ulrich and Chantrell, Roy W. and Chubykalo-Fesenko, Oksana}
}
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