26 citations · 124 across the 6 of their papers we have counts for
5 papers
Energetics and thermodynamics of bilayer rectangular artificial spin ices
Gabriel A. Oliveira, Winder A. Moura-Melo, Afranio R. Pereira +1
Bilayer rectangular artificial spin ices (BRASIs) with distinct aspect ratios, , are considered. Namely, we investigate how the underlying geometry modifies the interaction betw…
A model for structural defects in nanomagnets
F. A. Apolonio, W. A. Moura-Melo, F. P. Crisafulli +2
A model for describing structural pointlike defects in nanoscaled ferromagnetic materials is presented. Its details are explicitly developed whenever interacting with a vortex-like…
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…
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…
Heisenberg spins on a cone: an interplay between geometry and magnetism
W. A. Freitas, W. A. Moura-Melo, A. R. Pereira
This work is devoted to the study of how spin texture excitations are affected by the presence of a static nonmagnetic impurity whenever they lie on a conical support. We realize a…