43 citations · 150 across the 10 of their papers we have counts for
10 papers
Magnetostatic interaction between Bloch Point nanospheres
Cristobal Zambrano-Rabanal, Boris Valderrama, Felipe Tejo +4
Three-dimensional topological textures have become a topic of intense interest in recent years. Through analytical calculations, this work determines the magnetostatic field produc…
Oscillations of skyrmion clusters in Co/Pt multilayer nanodots
Felipe Tejo, Felipe Velozo, Ricardo Gabriel Elias +1
In this work we study the oscillations of the skyrmion cores in a multilayer nanodot as a function of the number of skyrmions hosted in the system. When all the skyrmions in the na…
Thermal state entanglement entropy on a quantum graph
Alberto D. Verga, Ricardo Gabriel Elias
A particle jumps between the nodes of a graph interacting with local spins. We show that the entanglement entropy of the particle with the spin network is related to the length of…
Entanglement and interaction in a topological quantum walk
Alberto D. Verga, Ricardo Gabriel Elias
We study the quantum walk of two interacting particles on a line with an interface separating two topologically distinct regions. The interaction induces a localization-delocalizat…
Parametric Resonance in Quantum Electrodynamics Vacuum Birefringence
Ariel Arza, Ricardo Gabriel Elias
Vacuum magnetic birefringence is one of the most interesting non-linear phenomena in quantum electrodynamics because it is a pure photon-photon result of the theory and it directly…
Curvature-induced changes in the magnetic energy of vortices and skyrmions in paraboloidal nanoparticles
V. L. Carvalho-Santos, R. G. Elias, J. M. Fonseca +1
Curvature effects are important for a proper description of the properties of magnetic systems. In this paper the exchange and dipolar energy of vortices on a paraboloidal shell is…
Topological magnetic solitons on a paraboloidal shell
P. S. C. Vilas-Boas, R. G. Elias, D. Altbir +2
We study the influence of curvature on the exchange energy of skyrmions and vortices on a paraboloidal surface. It is shown that such structures appear as excitations of the Heisen…
Stability of skyrmions on curved surfaces in the presence of a magnetic field
V. L. Carvalho-Santos, R. G. Elias, D. Altbir +1
We study the stability and energetics associated to skyrmions appear- ing as excitations on curved surfaces. Using a continuum model we show that the presence of cylindrically radi…
Topological changes of two-dimensional magnetic textures
Ricardo Gabriel Elias, Alberto D. Verga
We investigate the interaction of magnetic vortices and skyrmions with a spin-polarized current. In a square lattice, fixed classical spins and quantum itinerant electrons, evolve…
Magnetization structure of a Bloch point singularity
Ricardo Gabriel Elias, Alberto Verga
Switching of magnetic vortex cores involves a topological transition characterized by the presence of a magnetization singularity, a point where the magnetization vanishes (Bloch p…