26 citations · 50 across the 3 of their papers we have counts for
5 papers
How hole defects modify vortex dynamics in ferromagnetic nanodisks
W. A. Moura-Melo, A. R. Pereira, R. L. Silva +1
Defects introduced in ferromagnetic nanodisks may deeply affect the structure and dynamics of stable vortex-like magnetization. Here, analytical techniques are used for studying, a…
A class of generalised Jordan-Schwinger maps
N M Oliveira-Neto, E M F Curado, M A Rego-Monteiro
In this article we introduce a class of generalisations of the Jordan-Schwinger (JS) map which realises the recent proposed generalised sl(2) (G-sl(2)) algebra via two independent…
Heisenberg model on a space with negative curvature: topological spin textures on the pseudosphere
L. R. A. Belo, N. M. Oliveira-Neto, W. A. Moura-Melo +2
Heisenberg-like spins lying on the pseudosphere (a 2-dimensional infinite space with constant negative curvature) cannot give rise to stable soliton solutions. Only fractional solu…
Low-Temperature Quasi-Equilibrium States in the Hydrogen Atom
N. M. Oliveira-Neto, E. M. F. Curado, F. D. Nobre +1
The dynamics of the approach to equilibrium of the hydrogen atom is investigated numerically through a Monte Carlo procedure. We show that, before approaching ionization, the hydro…
A Method Based on a Nonlinear Generalized Heisenberg Algebra to Study the Molecular Vibrational Spectrum
J. de Souza, N. M. Oliveira-Neto, C. I. Ribeiro-Silva
We propose a method, based on a Generalized Heisenberg Algebra (GHA), to reproduce the anharmonic spectrum of diatomic molecules. The theoretical spectrum generated by GHA allows u…