Lima, Gustavo Zampier dos SantosCorrêa, Marcio AssolinSommer, Rubem LuisBohn, Felipe2021-11-232021-11-232012-12-27LIMA, Gustavo Zampier dos Santos; CORREA, Marcio Assolin; SOMMER, Rubem Luis; BOHN, Felipe. Multifractality in domain wall dynamics of a ferromagnetic film. Physical Review e, [s.l.], v. 86, n. 6, p. 0661171-0661177, 27 dez. 2012. American Physical Society (APS). Disponível em: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.86.066117. Acesso em 24 mai. 2020. DOI: 10.1103/PhysRevE.86.0661172470-0053https://repositorio.ufrn.br/handle/123456789/44988We 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 drivingmagnetic field frequencies, and calculate the fluctuation function Fq (s), generalized Hurst exponent h(q), multifractal scaling exponent τ (q), and the multifractal spectrum f (α). Based on this procedure, we provide experimental evidence of multifractality in the dynamics of domain walls in ferromagnetic films and identify a rich and strong multifractal behavior, revealed by the changes of the scaling properties of over the entire Barkhausen noise signal, independently of the driving magnetic field rate employed in the experimentPropriedades multifractaisDinâmica das paredes de domínioarticle