Skyrmionium dynamics and stability on one dimensional anisotropy patterns

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorLos Alamos National Laboratory-
Autor(es): dc.creatorBellizotti Souza, J. C.-
Autor(es): dc.creatorVizarim, N. P.-
Autor(es): dc.creatorReichhardt, C. J.O.-
Autor(es): dc.creatorReichhardt, C.-
Autor(es): dc.creatorVenegas, P. A.-
Data de aceite: dc.date.accessioned2025-08-21T23:20:52Z-
Data de disponibilização: dc.date.available2025-08-21T23:20:52Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-05-12-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/1361-648X/adc648-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299385-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299385-
Descrição: dc.descriptionWe examine a skyrmionium driven over a periodic anisotropy pattern, which consists of disorder free regions and disordered regions. For small defect densities, the skyrmionium flows for an extended range of currents, and there is a critical current above which it transforms into a skyrmion. For increased amounts of quenched disorder, the current needed for the skyrmionium to transform into a skyrmion decreases, and there is a critical disorder density above which a moving skyrmionium is not stable. In the moving state, the skyrmionium to skyrmion transformation leads to a drop in the velocity and the onset of a finite skyrmion Hall angle. We also find a reentrance effect in which the pinned skyrmionium transforms into a skyrmion just above depinning, restabilizes into skyrmionium at larger drives, and becomes unstable again at large currents. We also show that adding a transverse shaking drive can increase the lifetime of a moving skyrmionium by reducing the effect of the pinning in the direction of the drive.-
Descrição: dc.descriptionPOSMAT Programa de Pós-Graduação em Ciência e Tecnologia de Materiais São Paulo State University (UNESP) School of Sciences, SP-
Descrição: dc.descriptionGleb Wataghin’ Institute of Physics University of Campinas, Campinas-
Descrição: dc.descriptionTheoretical Division Center for Nonlinear Studies Los Alamos National Laboratory-
Descrição: dc.descriptionDepartment of Physics São Paulo State University (UNESP) School of Sciences, SP-
Descrição: dc.descriptionPOSMAT Programa de Pós-Graduação em Ciência e Tecnologia de Materiais São Paulo State University (UNESP) School of Sciences, SP-
Descrição: dc.descriptionDepartment of Physics São Paulo State University (UNESP) School of Sciences, SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Physics Condensed Matter-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectdynamics-
Palavras-chave: dc.subjectskyrmionium-
Palavras-chave: dc.subjectstability-
Título: dc.titleSkyrmionium dynamics and stability on one dimensional anisotropy patterns-
Tipo de arquivo: dc.typelivro digital-
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