29 citations · 54 across the 6 of their papers we have counts for
6 papers
The elastic Maier-Saupe-Zwanzig model and some properties of nematic elastomers
D. B. Liarte, C. S. O. Yokoi, S. R. Salinas
We introduce a simple mean-field lattice model to describe the behavior of nematic elastomers. This model combines the Maier-Saupe-Zwanzig approach to liquid crystals and an extens…
Compressible Sherrington-Kirkpatrick spin-glass model
D. B. Liarte, S. R. Salinas, C. S. O. Yokoi
We introduce a Sherrington-Kirkpatrick spin-glass model with the addition of elastic degrees of freedom. The problem is formulated in terms of an effective four-spin Hamiltonian in…
Antiferromagnetic spherical spin-glass model
D. B. Liarte, C. S. O. Yokoi
We study the thermodynamic properties and the phase diagrams of a multi-spin antiferromagnetic spherical spin-glass model using the replica method. It is a two-sublattice version o…
Stability of a two-sublattice spin-glass model
Carlos S. O. Yokoi, Francisco A. da Costa
We study the stability of the replica-symmetric solution of a two-sublattice infinite-range spin-glass model, which can describe the transition from antiferromagnetic to spin glass…
Random-energy model in random fields
Luiz O. de Oliveira Filho, Francisco Alexandre da Costa, Carlos S. O. Yokoi
The random-energy model is studied in the presence of random fields. The problem is solved exactly both in the microcanonical ensemble, without recourse to the replica method, and…
Metamagnets in uniform and random fields
Serge Galam, Carlos S. O. Yokoi, Silvio R. Salinas
We study a two-sublattice Ising metamagnet with nearest and next-nearest-neighbor interactions, in both uniform and random fields. Using a mean-field approximation, we show that th…