Ultrafast Spin Dynamics : The Effect of Colored Noise

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2009
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Chubykalo-Fesenko, Oksana
Chantrell, Roy W.
Rebei, A.
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Zusammenfassung

Recent experimental results have pushed the limits of magnetization dynamics to pico- and femtosecond time scales. This ultrafast dynamics occurs in extreme conditions of strong and rapid fields and high temperatures. This situation requires a new description of magnetization dynamics, taking into account that the electron correlation time could be of the order of the inverse spin frequency. For this case we introduce a thermodynamically correct phenomenological Landau-Lifshitz-Miyasaki-Seki approach. We demonstrate the effect of the noise correlation time on the ultrafast demagnetization rate.

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530 Physik
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Spin dynamics
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ISO 690ATXITIA, Unai, Oksana CHUBYKALO-FESENKO, Roy W. CHANTRELL, Ulrich NOWAK, A. REBEI, 2009. Ultrafast Spin Dynamics : The Effect of Colored Noise. In: Physical Review Letters. 2009, 102, 57203. Available under: doi: 10.1103/PhysRevLett.102.057203
BibTex
@article{Atxitia2009Ultra-5072,
  year={2009},
  doi={10.1103/PhysRevLett.102.057203},
  title={Ultrafast Spin Dynamics : The Effect of Colored Noise},
  volume={102},
  journal={Physical Review Letters},
  author={Atxitia, Unai and Chubykalo-Fesenko, Oksana and Chantrell, Roy W. and Nowak, Ulrich and Rebei, A.},
  note={Article Number: 57203}
}
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