Magnus induced diode effect for skyrmions in channels with periodic potentials

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Antwerp-
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.accessioned2025-08-21T20:54:07Z-
Data de disponibilização: dc.date.available2025-08-21T20:54:07Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-01-10-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/1361-648X/ac9cc5-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246286-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246286-
Descrição: dc.descriptionUsing a particle based model, we investigate the skyrmion dynamical behavior in a channel where the upper wall contains divots of one depth and the lower wall contains divots of a different depth. Under an applied driving force, skyrmions in the channels move with a finite skyrmion Hall angle that deflects them toward the upper wall for −x direction driving and the lower wall for +x direction driving. When the upper divots have zero height, the skyrmions are deflected against the flat upper wall for −x direction driving and the skyrmion velocity depends linearly on the drive. For +x direction driving, the skyrmions are pushed against the lower divots and become trapped, giving reduced velocities and a nonlinear velocity-force response. When there are shallow divots on the upper wall and deep divots on the lower wall, skyrmions get trapped for both driving directions; however, due to the divot depth difference, skyrmions move more easily under −x direction driving, and become strongly trapped for +x direction driving. The preferred −x direction motion produces what we call a Magnus diode effect since it vanishes in the limit of zero Magnus force, unlike the diode effects observed for asymmetric sawtooth potentials. We show that the transport curves can exhibit a series of jumps or dips, negative differential conductivity, and reentrant pinning due to collective trapping events. We also discuss how our results relate to recent continuum modeling on a similar skyrmion diode system.-
Descrição: dc.descriptionDepartamento de Física Faculdade de Ciências Unesp-Universidade Estadual Paulista, CP 473 SP-
Descrição: dc.descriptionPOSMAT Programa de Pós-Graduação em Ciência e Tecnologia de Materiais Faculdade de Ciências Universidade Estadual Paulista—UNESP, CP 473 SP-
Descrição: dc.descriptionDepartment of Physics University of Antwerp, Groenenborgerlaan 171-
Descrição: dc.descriptionTheoretical Division Center for Nonlinear Studies Los Alamos National Laboratory-
Descrição: dc.descriptionDepartamento de Física Faculdade de Ciências Unesp-Universidade Estadual Paulista, CP 473 SP-
Descrição: dc.descriptionPOSMAT Programa de Pós-Graduação em Ciência e Tecnologia de Materiais Faculdade de Ciências Universidade Estadual Paulista—UNESP, CP 473 SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Physics Condensed Matter-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectdiode-
Palavras-chave: dc.subjectMagnus-
Palavras-chave: dc.subjectperiodic potentials-
Palavras-chave: dc.subjectskyrmions-
Título: dc.titleMagnus induced diode effect for skyrmions in channels with periodic potentials-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.