Control of domain structure and magnetization reversal in thick Co/Pt multilayers

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dc.contributor.authorFallarino, Lorenzocs
dc.contributor.authorOelschlägel, Antjecs
dc.contributor.authorArregi Uribeetxebarria, Jon Andercs
dc.contributor.authorBashkatov, Aleksandercs
dc.contributor.authorSamad, Fabiancs
dc.contributor.authorBöhm, B.cs
dc.contributor.authorChesnel, Karinecs
dc.contributor.authorHellwig, Olavcs
dc.coverage.issue2cs
dc.coverage.volume99cs
dc.date.issued2019-01-25cs
dc.description.abstractWe present a study of the magnetic properties of [Co(3.0 nm)/Pt(0.6nm)]N multilayers as a function of Co/Pt bilayer repetitions N. Magnetometry investigation reveals that samples with N 15 exhibit two characteristic magnetization reversal mechanisms, giving rise to two different morphologies of the remanent domain pattern. For applied magnetic field angles near the in-plane field orientation, the magnetization reversal proceeds via a spontaneous instability of the uniform magnetic state resulting in perpendicular stripe domains. Conversely, for field angles close to the out-of-plane orientation, the reversal occurs via domain nucleation and propagation leading to a mazelike domain pattern at remanence. Our measurements further enable the characterization of the N-dependent energy balance between the magnetic anisotropy and magnetostatic energy contributions, revealing a gradual disappearance of the domain nucleation process during magnetization reversal for N < 14. This leads to the exclusive occurrence of an instability reversal mechanism for all field orientations as well as alignedlike stripe domains at remanence. Furthermore, a detailed study of the influence of the magnetic history allows the determination of a range of material properties and magnetic field strengths, where a lattice of bubble domains with remarkably high density is stabilized. These modulations of the ferromagnetic order parameter are found to strongly depend on N, in terms of center-to-center bubble distance as well as of bubble diameter. Moreover, such Co/Pt multilayers could be utilized to engineer field reconfigurable bubble domain lattices, which resemble magnonic crystals.en
dc.formattextcs
dc.format.extent024431-1-024431-16cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPHYSICAL REVIEW B. 2019, vol. 99, issue 2, p. 024431-1-024431-16.en
dc.identifier.doi10.1103/PhysRevB.99.024431cs
dc.identifier.issn2469-9950cs
dc.identifier.orcid0000-0002-7376-2757cs
dc.identifier.other155304cs
dc.identifier.researcheridM-9810-2016cs
dc.identifier.scopus55248382600cs
dc.identifier.urihttp://hdl.handle.net/11012/173209
dc.language.isoencs
dc.publisherAmerican Physical Societycs
dc.relation.ispartofPHYSICAL REVIEW Bcs
dc.relation.urihttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.024431cs
dc.rights(C) American Physical Societycs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2469-9950/cs
dc.subjectirreversible evolutionen
dc.subjectstripe domainsen
dc.subjectx-rayen
dc.subjectanisotropyen
dc.subjectfilmsen
dc.subjecthysteresisen
dc.subjecttransitionen
dc.subjectskyrmionsen
dc.titleControl of domain structure and magnetization reversal in thick Co/Pt multilayersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionsubmittedVersionen
sync.item.dbidVAV-155304en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:55en
sync.item.modts2025.01.17 16:45:12en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Nanomagnetismus a spintronikacs
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