Listar Investigación y Desarrollo por autor "Castillo-Sepúlveda, Sebastian"
Mostrando ítems 1-5 de 5
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Article
Controlling domain wall chirality by combining hard and soft magnetic materials in planar nanostructures with wire-ring morphology (2020)
Corona, Rosa M.; Castillo-Sepúlveda, Sebastian; Altbir, Dora; Escrig, Juan (Elsevier B.V., 2021-01)Vortex domain walls (DWs) are characterized by their chirality, an important property that needs to be controlled for the use of such walls in potential technological applications. In this work we explore a wire-ring ... -
Article
Curvature-induced emergence of a second critical field for domain wall dynamics in bent nanostripes (2021)
Bittencourt, G. H.R.; Moreno, Roberto; Cacilhas, R.; Castillo-Sepúlveda, Sebastian; Chubykalo-Fesenko, O.; Altbir, Dora; Carvalho-Santos, Vagson Luiz (American Institute of Physics Inc., 2021-04-05)We investigate the dynamics of a transverse domain wall (DW) in a bent nanostripe under an external field and spin-polarized current. Besides the standard Walker breakdown phenomenon, we show the emergence of a second ... -
Article
Influence of curvature on the dynamical susceptibility of bent nanotubes (2022)
Saavedra, Eduardo; Castillo-Sepúlveda, Sebastian; Corona, Rosa M.; Altbir, Dora; Escrig, Juan; Carvalho-Santos, Vagson Luiz (Elsevier B.V., 2022-04)In this work we analyze the influence of curvature on the dynamic properties of the magnetization in bent nanotubes. Our results show that both the resonance frequencies and the number of resonant peaks have a strong ... -
Article
Magnetic hopfions in toroidal nanostructures driven by an Oersted magnetic field (2021)
Castillo-Sepúlveda, Sebastian; Cacilhas, R.; Carvalho-Santos, Vagson Luiz; Corona, Rosa M.; Altbir, Dora (American Physical Society, 2021-11-01)The search for magnetic hopfions has been the focus of intense research during the last years. In this direction, and using micromagnetic simulations, we studied the magnetization reversal mechanism in toroidal nanoparticles ... -
Article
Motion-induced inertial effects and topological phase transitions in skyrmion transport (2021)
Teixeira, A. W.; Castillo-Sepúlveda, Sebastian; Rizzi, Leandro G.; Núñez, Álvaro S.; Troncoso, Roberto E.; Altbir, Dora; Fonseca, Jakson M.; Carvalho-Santos, Vagson Luiz (NLM (Medline), 2021-05-28)When the skyrmion dynamics beyond the particle-like description is considered, this topological structure can deform due to a self-induced field. In this work, we perform Monte Carlo simulations to characterize the skyrmion ...