Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/537
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dc.contributor.authorTadić, Bosiljkaen
dc.contributor.authorMijatović, Svetislaven
dc.contributor.authorJanićević, Sanjaen
dc.contributor.authorSpasojević, Djordjeen
dc.contributor.authorRodgers, Geoff Jen
dc.date.accessioned2022-07-12T15:53:42Z-
dc.date.available2022-07-12T15:53:42Z-
dc.date.issued2019-04-19en
dc.identifier.urihttps://physrep.ff.bg.ac.rs/handle/123456789/537-
dc.description.abstractThe interplay between the critical fluctuations and the sample geometry is investigated numerically using thin random-field ferromagnets exhibiting the field-driven magnetisation reversal on the hysteresis loop. The system is studied along the theoretical critical line in the plane of random-field disorder and thickness. The thickness is varied to consider samples of various geometry between a two-dimensional plane and a complete three-dimensional lattice with an open boundary in the direction of the growing thickness. We perform a multi-fractal analysis of the Barkhausen noise signals and scaling of the critical avalanches of the domain wall motion. Our results reveal that, for sufficiently small thickness, the sample geometry profoundly affects the dynamics by modifying the spectral segments that represent small fluctuations and promoting the time-scale dependent multi-fractality. Meanwhile, the avalanche distributions display two distinct power-law regions, in contrast to those in the two-dimensional limit, and the average avalanche shapes are asymmetric. With increasing thickness, the scaling characteristics and the multi-fractal spectrum in thicker samples gradually approach the hysteresis loop criticality in three-dimensional systems. Thin ferromagnetic films are growing in importance technologically, and our results illustrate some new features of the domain wall dynamics induced by magnetisation reversal in these systems.en
dc.language.isoenen
dc.relation.ispartofScientific reportsen
dc.titleThe critical Barkhausen avalanches in thin random-field ferromagnets with an open boundaryen
dc.typeJournal Articleen
dc.identifier.doi10.1038/s41598-019-42802-wen
dc.identifier.pmid31004121en
dc.identifier.scopus2-s2.0-85064549640en
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85064549640en
dc.relation.issue1en
dc.relation.volume9en
dc.relation.firstpage6340en
item.grantfulltextnone-
item.languageiso639-1en-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
crisitem.author.orcid0000-0001-6722-8489-
crisitem.author.orcid0000-0003-2177-530X-
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