Search Results - "Plascak, J A"

Kinetic Models of Discrete Opinion Dynamics on Directed Barabási–Albert Networks by Lima, F. Welington S., Plascak, J. A.

“…Kinetic models of discrete opinion dynamics are studied on directed Barabási–Albert networks by using extensive Monte Carlo simulations. A continuous phase…”
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Finite-Size Effects of the One-Dimensional Ising Model by Ferreira, L. S., Plascak, J. A.

“…The one-dimensional Ising model is revisited in order to study the finite-size scaling behavior near its zero critical temperature by following the scaling…”
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Ensemble thermodynamic potentials of magnetic systems by Plascak, J.A.

“…•Fluid and magnetic systems are compared.•The names of the thermodynamics potentials are discussed and clarified.•The one-dimensional Ising model is treated in…”
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Study of the ground state and thermodynamic properties of Cu5-NIPA-like molecular nanomagnets by Torrico, J., Plascak, J.A.

“…The thermodynamic properties of a spatially anisotropic spin-1/2 Heisenberg model for a Cu5 pentameric molecule is studied through exact diagonalization. The…”
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Percolation on two- and three-dimensional lattices by Martins, P H L, Plascak, J A

“…In this work we apply a highly efficient Monte Carlo algorithm recently proposed by Newman and Ziff to treat percolation problems. The site and bond…”
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Quantum spin-1 anisotropic ferromagnetic Heisenberg model in a crystal field: a variational approach by Carvalho, D C, Plascak, J A, Castro, L M

“…A variational approach based on Bogoliubov inequality for the free energy is employed in order to treat the quantum spin-1 anisotropic ferromagnetic Heisenberg…”
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Low-temperature thermodynamic study of the diluted planar rotator model using a self-consistent harmonic approximation by Castro, L.M, Pires, A.S.T, Plascak, J.A

“…The self-consistent harmonic approximation is used to study a dilute planar rotator model in two dimensions. The Kosterlitz–Thouless transition temperature is…”
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Universality class of the two-dimensional site-diluted Ising model by Martins, P H L, Plascak, J A

“…In this work, we evaluate the probability distribution function of the order parameter for the two-dimensional site-diluted Ising model. Extensive Monte Carlo…”
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Critical behavior of the Ising and Blume-Capel models on directed two-dimensional small-world networks by Lima, F.W.S., Plascak, J.A.

“…The critical properties of the two-dimensional Ising and Blume-Capel model on directed small-world lattices with quenched connectivity disorder are…”
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Spin-1/2 anisotropic Heisenberg antiferromagnet model with Dzyaloshinskii-Moriya interaction via mean-field approximation by Parente, Walter E.F., Pacobahyba, J.T.M., Neto, Minos A., Araújo, Ijanílio G., Plascak, J.A.

“…•We find the temperature as a function of the field and the DM interaction.•At T=0, the value of the critical external field is given by hc=c and is…”
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Cluster size effects in the magnetic properties of Fep-Alq=1-p alloys by Santos-Filho, J.B., Santos Sá, A.V., de Araujo Batista, T.S., Plascak, J.A.

“…•Critical properties of Fe-Al alloys in the bcc phase – phase diagram.•Ising model with exchange and superexchange interactions.•Monte Carlo simulations taking…”
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Wang-Landau Monte Carlo simulation of the Blume-Capel model by Silva, C J, Caparica, A A, Plascak, J A

“…We carry out a study of the two-dimensional Blume-Capel model using the Wang-Landau Monte Carlo method which estimates the density of states g(E) directly…”
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The general-spin Blume–Capel model: A study of the multicritical behavior using effective-field theory by Costabile, Emanuel, Roberto Viana, J., Ricardo de Sousa, J., Plascak, J.A.

“…The general-spin Blume–Capel model is studied by using an effective-field theory with correlation. An expression for the free energy within the effective-field…”
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Site-diluted Blume–Capel model for the Fe–Al disordered alloys by Dias, D.A., Plascak, J.A.

“…The phase-diagram of a site-diluted spin-1 Blume–Capel model on a simple cubic lattice is studied by using the mean-field renormalization group approach in the…”
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Blume–Capel model on directed and undirected small-world Voronoi–Delaunay random lattices by Fernandes, F.P., Lima, F.W.S., Plascak, J.A.

“…The critical properties of the spin-1 two-dimensional Blume–Capel model on directed and undirected random lattices with quenched connectivity disorder is…”
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Monte Carlo simulations of the site-diluted three-dimensional XY model by Santos-Filho, J.B., Plascak, J.A.

“…We present extensive Monte Carlo simulations of the classical XY model in three dimensions on a simple cubic lattice with periodic boundary conditions subject…”
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Universality and double critical end points by Plascak, J A, Landau, D P

“…A double critical end point in the two-dimensional spin-3/2 Blume-Capel model is studied via extensive Monte Carlo simulations. The resultant scaling character…”
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Study of the ground state and thermodynamic properties of Cu5-NIPA-like molecular nanomagnets by Torrico, J, Plascak, J. A

“…The thermodynamic properties of a spatially anisotropic spin-1/2 Heisenberg model for a Cu$_5$ pentameric molecule is studied through exact diagonalization…”
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Site-diluted quantum Heisenberg spin model applied to the magnetic properties of Fe–Al disordered alloys by Salazar, M., Zamora, Ligia E., Pérez Alcazar, G.A., Plascak, J.A., Aguirre, W.R.

“…In this work we present a theoretical study of the magnetic behavior of disordered Fe–Al alloys on the basis of a simple-diluted quantum Heisenberg spin model…”
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Spin-dynamics simulations of the XY vector Blume-Emery-Griffiths model in three dimensions by Plascak, J A, Tsai, Shan-Ho, Landau, D P

“…We present extensive Monte Carlo spin-dynamics simulations of the vector Blume-Emery-Griffiths model with three-dimensional spins on a simple cubic lattice and…”
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