2 papers
cond-mat.stat-mech2015
Mean-field solution of the Blume-Capel model under a random crystal field
Priscila V. dos Santos, Francisco A. da Costa, João M. de Araújo
In this work we investigate the Blume-Capel model with infinite-range ferromagnetic interactions and under the influence of a quenched disorder - a random crystal field. For a suit…
cond-mat.stat-mech2003
Comment on "Conservative force fields in nonextensive kinetic theory."
F. A. da Costa, M. D. S. de Meneses
We discuss an improper application of the Maxwell-Boltzmann theory to a very unrealistic model. The authors of the original paper claim that a generalized theory would solve a prob…