112 citations · 302 across the 14 of their papers we have counts for
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Collective depinning of dipolar skyrmion chains: thermal and athermal rounding of an elastic polymer in a quenched landscape
R. L. Silva, R. C. Silva, R. L. Stamps
The dynamics of interacting dipole skyrmion chains in a weak pinning landscape is studied through numerical solutions of the stochastic Thiele equation. Chains of different lengths…
Periodic transitions of topological charge in skyrmions confined within FeGe and Co/Pt nanodisks
R. L. Silva, R. C. Silva
The dynamic control of skyrmion properties such as polarity, vorticity, and topological charge is crucial for their implementation in spintronic applications. In this work, we inve…
A proposal for skyrmion-based diode-like device in antiferromagnetic nanostripe
R. C. Silva, R. L. Silva
Micromagnetic simulations were employed to investigate the dynamics of a single skyrmion within an antiferromagnetic nanostripe with spatially engineered magnetic properties. This…
Channeling Skyrmions: suppressing the skyrmion Hall effect in ferrimagnetic nanostripes
R. C. Silva, R. L. Silva, J. C. Moreira +2
The Skyrmion Hall Effect (SkHE) observed in ferromagnetic (FM) and ferrimagnetic (FI) skyrmions traveling due to a spin-polarized current can be a problematic issue when it comes t…
Robust dynamics of antiferromagnetic skyrmion driven by spin-polarized current in small thin disks
R. L. Silva, R. C. Silva, W. A. Moura-Melo +1
We investigate skyrmion configuration and dynamics in antiferromagnetic thin disks. It is shown that the skyrmion acquires oscillatory dynamics with well-defined amplitude and freq…
Typical skyrmions versus bimerons: a long-distance competition in ferromagnetic racetracks
A. S. Araújo, R. J. C. Lopes, V. L. Carvalho-Santos +4
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 s…
Topological Hall effect induced Skyrmion-Antiskyrmion coupling in inhomogeneous racetrack
R. C. Silva, R. L. Silva, A. R. Pereira
In this paper we investigate a magnetic racetrack consisting of a junction of three materials with different properties. Indeed, this magnetic system is composed by two distinct re…
Vortex-crystal pattern in an anti-artificial spin ice system
C. I. L. de Araujo, R. C. Silva, I. R. B. Ribeiro +6
We have proposed in this work an original system composed by anti-dots nanopatterned in a ferromagnetic thin film, mimicking negatively the structure of an articial spin ice. In th…
Nambu monopoles interacting with lattice defects in two-dimensional artificial square spin ice
R. C. Silva, R. J. C. Lopes, L. A. S. Mól +3
The interactions between an excitation (similar to a pair of Nambu monopoles) and a lattice defect are studied in an artificial two-dimensional square spin ice. This is done by con…
Thermodynamics of elementary excitations in artificial magnetic square ice
R. C. Silva, F. S. Nascimento, L. A. S. Mól +2
We investigate the thermodynamics of artificial square spin ice systems assuming only dipolar interactions among the islands that compose the array. The emphasis is given on the ef…
Predicted defect induced vortex core switching in thin magnetic nanodisks
R. L. Silva, A. R. Pereira, W. A. Moura-Melo +4
We investigate the influence of artificial defects (small holes) inserted into magnetic nanodisks on the vortex core dynamics. One and two holes (antidots) are considered. In gener…