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Nucleation and Stability of Toron Chains in Non-Centrosymmetric Magnetic Nanowires.
Castillo-Sepúlveda, Sebastián; Corona, Rosa M; Saavedra, Eduardo; Laroze, David; Espejo, Alvaro P; Carvalho-Santos, Vagson L; Altbir, Dora.
Afiliação
  • Castillo-Sepúlveda S; Grupo de Investigación en Física Aplicada, Facultad de Ingeniería, Universidad Autónoma de Chile, Avenida Pedro de Valdivia 425, Providencia 7500912, Chile.
  • Corona RM; Departamento de Física, CEDENNA, Universidad de Santiago de Chile, Avenida Víctor Jara 3493, Estación Central, Santiago 9170022, Chile.
  • Saavedra E; Department of Physics, University of Santiago de Chile (USACH), Santiago 9170124, Chile.
  • Laroze D; Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica 1000000, Chile.
  • Espejo AP; Departamento de Física, CEDENNA, Universidad de Santiago de Chile, Avenida Víctor Jara 3493, Estación Central, Santiago 9170022, Chile.
  • Carvalho-Santos VL; Departamento de Física, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs s/n, Viçosa 36570-000, MG, Brazil.
  • Altbir D; Departamento de Física, CEDENNA, Universidad de Santiago de Chile, Avenida Víctor Jara 3493, Estación Central, Santiago 9170022, Chile.
Nanomaterials (Basel) ; 13(12)2023 Jun 07.
Article em En | MEDLINE | ID: mdl-37368246
This work analyzes the magnetic configurations of cylindrical nanowires with a bulk Dzyaloshinskii-Moriya interaction and easy-plane anisotropy. We show that this system allows the nucleation of a metastable toron chain even when no out-of-plane anisotropy exists in the nanowire's top and bottom surfaces, as usually required. The number of nucleated torons depends on the nanowire length and the strength of an external magnetic field applied to the system. The size of each toron depends on the fundamental magnetic interactions and can be controlled by external stimuli, allowing the use of these magnetic textures as information carriers or nano-oscillator elements. Our results evidence that the topology and structure of the torons yield a wide variety of behaviors, revealing the complex nature of these topological textures, which should present an exciting interaction dynamic, depending on the initial conditions.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Suíça