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pro vyhledávání: '"Altbir, D"'
In this work, we present a theoretical model for domain wall (DW) oscillations in a curved magnetic nanowire with a constant curvature under the action of a uniaxial magnetic field. Our results show that the DW dynamics can be described as that of th
Externí odkaz:
http://arxiv.org/abs/2309.10051
Autor:
Bittencourt, G. H. R., Castro, M., Nunez, A. S., Altbir, D., Allende, S., Carvalho-Santos, V. L.
This work analyzes the propagation of a transverse domain wall (DW) motion under the action of an electric current along a nanowire (NW) with a curvature gradient. Our results evidence that the curvature gradient induces a chiral spin-transfer torque
Externí odkaz:
http://arxiv.org/abs/2308.09276
Autor:
Bittencourt, G. H. R., Castillo-Sepúlveda, S., Chubykalo-Fesenko, O., Moreno, R., Altbir, D., Carvalho-Santos, V. L.
Understanding the domain wall (DW) dynamics in magnetic nanowires (NW) is crucial for spintronic-based applications demanding the use of DWs as information carriers. This work focuses on the dynamics of a DW displacing along a bent NW with an ellipti
Externí odkaz:
http://arxiv.org/abs/2205.05716
Autor:
Saavedra, E., Altbir, D., Escrig, J., Castillo-Sepúlveda, S., Corona, R.M., Carvalho-Santos, V.L.
Publikováno v:
In Results in Physics July 2024 62
Autor:
Araújo, A. S., Lopes, R. J. C., Carvalho-Santos, V. L., Pereira, A. R., Silva, R. L., Silva, R. C., Altbir, D.
Publikováno v:
Phys. Rev. B 102, 104409 (2020)
During the last years, topologically protected collective modes of the magnetization have called much attention. Among these, skyrmions and merons have been the object of intense study. In particular, topological skyrmions are objects with an integer
Externí odkaz:
http://arxiv.org/abs/2005.12972
Akademický článek
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Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 December 2023 588 Part A
Skyrmions have become one of the most visited topics during the last decade in condensed matter physics. In this work, and by means of analytical calculations and micromagnetic simulations, we explore the effect of the magnetostatic field generated b
Externí odkaz:
http://arxiv.org/abs/1904.02775
Publikováno v:
Journal of Applied Physics; 2/14/2024, Vol. 135 Issue 6, p1-8, 8p
Autor:
Teixeira, A. W., Castillo-Sepúlveda, S., Vojkovic, S., Fonseca, J. M., Altbir, D., Núñez, Á. S., Carvalho-Santos, V. L.
Curvature of nanomagnets can be used to induce chiral textures in the magnetization field. Here we perform analytical calculations and micromagnetic simulations aiming to analyze the stability of in-surface magnetization configurations in toroidal na
Externí odkaz:
http://arxiv.org/abs/1812.03729