36 citations · 132 across the 7 of their papers we have counts for
7 papers
A percolation system with extremely long range connections and node dilution
M. L. de Almeida, E. L. Albuquerque, U. L. Fulco +1
We study the very long-range bond-percolation problem on a linear chain with both sites and bonds dilution. Very long range means that the probability for a connection bet…
Ising models on the Regularized Apollonian Network
M. Serva, U. L. Fulco, E. L. Albuquerque
We investigate the critical properties of Ising models on a Regularized Apollonian Network (RAN), here defined as a kind of Apollonian Network (AN) in which the connectivity asymme…
Defects in Graphene-Based Twisted Nanoribbons: Structural, Electronic and Optical Properties
Ewerton W. S. Caetano, Valder N. Freire, Sergio G. dos Santos +3
We present some computational simulations of graphene-based nanoribbons with a number of half-twists varying from 0 to 4 and two types of defects obtained by removing a single carb…
Influence of the biquadratic interlayer coupling in the specific heat of Fibonacci magnetic multilayers
C. G. Bezerra, E. L. Albuquerque, M. G. Cottam
A theoretical study of the specific heat C(T) as a function of temperature in Fibonacci magnetic superlattices is presented. We consider quasiperiodic structures composed of ferrom…
Spin wave specific heat in quasiperiodic Fibonacci structures
C. G. Bezerra, E. L. Albuquerque, A. M. Mariz +2
The energy spectra of a variety of collective modes on quasiperiodic structures exhibit a complex fractal profile. Among the modes that have attracted particular attention in this…
Magnetization in quasiperiodic magnetic multilayers with biquadratic exchange coupling
C. G. Bezerra, J. M. de Araujo, C. Chesman +1
A theoretical study of the magnetization curves of quasiperiodic magnetic multilayers is presented. We consider structures composed by ferromagnetic films (Fe) with interfilm excha…
Self-similar magnetoresistance of Fibonacci ultrathin magnetic films
C. G. Bezerra, J. M. de Araujo, C. Chesman +1
We study numerically the magnetic properties (magnetization and magnetoresistance) of ultra-thin magnetic films (Fe/Cr) grown following the Fibonacci sequence. We use a phenomenolo…