12 citations · 13 across the 6 of their papers we have counts for
6 papers
Replica-symmetric solutions of a dilute Ising ferromagnet in a random field
M. O. Hase, J. R. L. de Almeida, S. R. Salinas
We use the replica method in order to obtain an expression for the variational free energy of an Ising ferromagnet on a Viana-Bray lattice in the presence of random external fields…
On the Field Dependence of the Interface Energy in Af/FM Bilayers
J. R. L. de Almeida, J. R. Steiner, S. M. Rezende
In the investigations of antiferromagnetic (AF)/ ferromagnetic (FM) bilayer samples, often distinct experimental techniques yield different values for the measured exchange anisotr…
Field Dependence of the Interface Energy in Af/FM Bilayers
J. R. L. de Almeida, J. R. Steiner, S. M. Rezende
In the investigations of antiferromagnetic (AF)/ ferromagnetic (FM) bilayer samples, often distinct experimental techniques yield different values for the measured exchange anisotr…
On the entropy of the Viana-Bray model
J. R. L. de Almeida
The entropy of the Viana-Bray model at zero temperature and external field is calculated within the solution which takes into account only delta functions for the global order para…
Spin-Glass: An Unfinished Story
J. R. L. de Almeida, S. Coutinho
In this work a short overview of the development of spin glass theories, mainly long and short range Ising models, are presented.
Replica Real Space Renormalization Group for Spin Glasses
J. R. L. de Almeida, S. Coutinho
We construct a real space renormalization group (RG) approach for Ising spin glasses on hypercubic lattices within the scheme of the Migdal-Kadanoff approximation using replicas. O…