Multifractality in domain wall dynamics of a ferromagnetic film.

  title={Multifractality in domain wall dynamics of a ferromagnetic film.},
  author={Gustavo Zampier Dos Santos Lima and M{\'a}rcio Assolin Corr{\^e}a and Rubem Luis Sommer and Felipe Bohn},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={86 6 Pt 2},
We investigate the multifractal properties in the dynamics of domain walls of a ferromagnetic film. We apply the Multifractal Detrended Fluctuation Analysis method in experimental Barkhausen noise time series measured in a 1000-nm-thick Permalloy film under different driving magnetic field frequencies, and calculate the fluctuation function F_{q}(s), generalized Hurst exponent h(q), multifractal scaling exponent τ(q), and the multifractal spectrum f(α). Based on this procedure, we provide… CONTINUE READING

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