112 citations · 313 across the 10 of their papers we have counts for
10 papers
On the use of the energy probability distribution zeros in the study of phase transitions
L A S Mól, R G M Rodrigues, R A Stancioli +2
This contribution is devoted to cover some technical aspects related to the use of the recently proposed energy probability distribution zeros in the study of phase transitions. Th…
Using zeros of the canonical partition function map to detect signatures of a Berezinskii-Kosterlitz-Thouless transition
J. C. S. Rocha, L. A. S. Mól, B. V. Costa
Using the two dimensional model as a test case, we show that analysis of the Fisher zeros of the canonical partition function can provide signatures of a transition i…
Realization of magnetic monopoles current in an artificial spin ice device: A step towards magnetronics
R. P. Loreto, L. A. Morais, R. C. Silva +5
Magnetricity- the magnetic equivalent of electricity- was recently verified experimentally for the first time. Indeed, just as the stream of electric charges produces electric curr…
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…
From confinement to deconfinement of magnetic monopoles in artificial rectangular spin ices
F. S. Nascimento, L. A. S. Mól, W. A. Moura-Melo +1
We study a frustrated two-dimensional array of dipoles forming an artificial rectangular spin ice with horizontal and vertical lattice parameters given by and respectively.…
Magnetic anisotropy of elongated thin ferromagnetic nano-islands for artifical spin ice arrays
G. M. Wysin, W. A. Moura-Melo, L. A. S. Mól +1
The energetics of thin elongated ferromagnetic nano-islands is considered for some different shapes, aspect ratios, and applied magnetic field directions. These nano-island particl…
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…
Vortex core dynamics induced by hole defects in antiferromagnetic nanodisks
R. L. Silva, R. D. Pereira, A. R. Pereira +3
Direct observation of vortex states in an antiferromagnetic layer have been recently reported [Wu, et al, Nature Phys. 7, 303 (2011)]. In contrast to their analogues in ferromagnet…
Magnetic monopole and string excitations in a two-dimensional spin ice
L. A. S. Mol, R. L. Silva, R. C. Silva +3
We study the magnetic excitations of a square lattice spin-ice recently produced in an artificial form, as an array of nanoscale magnets. Our analysis, based upon the dipolar inter…
Vortex behavior near a spin vacancy in 2D XY-magnets
A. R. Pereira, L. A. S. Mol, S. A. Leonel +2
The dynamical behavior of anisotropic two dimensional Heisenberg models is still a matter of controversy. The existence of a central peak at all temperatures and a rich structure o…