Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Núñez, Álvaro S."'
Spin fluctuations in two-dimensional (2D) ferromagnets in the presence of crystalline lattice dislocations are investigated. We show the existence of topologically protected non-propagative modes that localize at dislocations. These in-gap states, co
Externí odkaz:
http://arxiv.org/abs/2410.04044
We reveal the role of the spin variables' zero-point fluctuations (ZPFs) on the stability of Bloch point (BP) singularities. As topological solitons, BPs are important in topological transitions in nanomagnets. BPs present a singularity at their core
Externí odkaz:
http://arxiv.org/abs/2305.18704
Autor:
Saji, Carlos, Troncoso, Roberto E., Carvalho-Santos, Vagson L., Altbir, Dora, Nunez, Alvaro S.
Hopfions are localized and topologically non-trivial magnetic configurations that have received considerable attention in recent years. Through a micromagnetic approach, we analyze the scattering of spin waves by magnetic hopfions. We show that the s
Externí odkaz:
http://arxiv.org/abs/2302.13190
Autor:
Zambrano-Rabanal, Cristobal, Valderrama, Boris, Tejo, Felipe, Elías, Ricardo Gabriel, Nunez, Alvaro S., Carvalho-Santos, Vagson L., Vidal-Silva, Nicolás
Three-dimensional topological textures have become a topic of intense interest in recent years. Through analytical calculations, this work determines the magnetostatic field produced by a Bloch Point (BP) singularity confined in a magnetic nanosphere
Externí odkaz:
http://arxiv.org/abs/2211.09161
Autor:
Acuna, Daniel, Gutiérrez, Francisco, Silva, Rodrigo, Palza, Humberto, Nunez, Alvaro S., Düring, Gustavo
Despite their outstanding mechanical properties, with many industrial applications, a rational and systematic design of new and controlled auxetic materials remains poorly developed. Here a unified framework is established to describe bidimensional p
Externí odkaz:
http://arxiv.org/abs/2101.12352
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 March 2024 594
Autor:
Teixeira, Allison W., Castillo-Sepúlveda, Sebastián, Rizzi, Leandro G., Nunez, Alvaro S., Troncoso, Roberto E., Altbir, Dora, Fonseca, Jakson M., Carvalho-Santos, Vagson L.
In this work, the current-induced inertial effects on skyrmions hosted in ferromagnetic systems are studied. {When the dynamics is considered beyond the particle-like description, magnetic skyrmions can deform due to a self-induced field. We perform
Externí odkaz:
http://arxiv.org/abs/2010.01715
Autor:
Silva, Benjamín, Govan, Joseph, Cristóbal Zagal, Juan, Grossi, Bruno, Roldan, Alejandro, Nunez, Alvaro S., Acuña, Daniel, Palza, Humberto
Publikováno v:
In Materials & Design September 2023 233
Akademický článek
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Autor:
Gallardo, Rodolfo A., Schneider, Tobias, Roldán-Molina, Alejandro, Langer, Manuel, Núñez, Álvaro S., Lenz, Kilian, Lindner, Jürgen, Landeros, Pedro
Publikováno v:
Physical Review B 97, 174404 (2018)
Symmetry and localization properties of defect modes of a one-dimensional bi-component magnonic superlattice are theoretically studied. The magnonic superlattice can be seen as a periodic array of nanostripes, where stripes with different width, term
Externí odkaz:
http://arxiv.org/abs/1812.00897