Universal temporal characteristics and vanishing of multifractality in Barkhausen avalanches

Lima, Gustavo Zampier dos Santos; Corso, Gilberto; Corrêa, Marcio Assolin; Sommer, R. L.; Ivanov, P. Ch.; Bohn, Felipe

Universal temporal characteristics and vanishing of multifractality in Barkhausen avalanches

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dc.contributor.author	Lima, Gustavo Zampier dos Santos
dc.contributor.author	Corso, Gilberto
dc.contributor.author	Corrêa, Marcio Assolin
dc.contributor.author	Sommer, R. L.
dc.contributor.author	Ivanov, P. Ch.
dc.contributor.author	Bohn, Felipe
dc.date.accessioned	2020-06-16T18:54:34Z
dc.date.available	2020-06-16T18:54:34Z
dc.date.issued	2017-08-31
dc.description.resumo	Barkhausen effect in ferromagnetic materials provides an excellent area for investigating scaling phenomena found in disordered systems exhibiting crackling noise. The critical dynamics is characterized by random pulses or avalanches with scale-invariant properties, power-law distributions, and universal features. However, the traditional Barkhausen avalanches statistics may not be sufficient to fully characterize the complex temporal correlation of the magnetic domain walls dynamics. Here we focus on the multifractal scenario to quantify the temporal scaling characteristics of Barkhausen avalanches in polycrystalline and amorphous ferromagnetic films with thicknesses from 50 to 1000 nm. We show that the multifractal properties are dependent on film thickness, although they seem to be insensitive to the structural character of the materials. Moreover, we observe for the first time the vanishing of the multifractality in the domain walls dynamics. As the thickness is reduced, the multifractal behavior gives place to a monofractal one over the entire range of time scales. This reorganization in the temporal scaling characteristics of Barkhausen avalanches is understood as a universal restructuring associated to the dimensional crossover, from three- to two-dimensional magnetization dynamics	pt_BR
dc.identifier.citation	LIMA, G. Z. dos Santos; CORSO, G.; CORREA, M. A.; SOMMER, R. L.; IVANOV, P. Ch.; BOHN, F.. Universal temporal characteristics and vanishing of multifractality in Barkhausen avalanches. Physical Review e, [s.l.], v. 96, n. 2, p. 0221591-0221599, 31 ago. 2017. American Physical Society (APS). Disponível em: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.96.022159. Acesso em: 10 jun. 2020. https://doi.org/10.1103/PhysRevE.96.022159.	pt_BR
dc.identifier.doi	10.1103/PhysRevE.96.022159
dc.identifier.issn	2470-0053
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29274
dc.language	en	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Barkhausen avalanches	pt_BR
dc.subject	Polycrystalline	pt_BR
dc.title	Universal temporal characteristics and vanishing of multifractality in Barkhausen avalanches	pt_BR
dc.type	article	pt_BR