126 citations · 484 across the 26 of their papers we have counts for
26 papers
Universal energy and magnetisation distributions in the Blume-Capel and Baxter-Wu models
A. R. S. Macedo, J. A. Plascak, A. Vasilopoulos +3
We analyse the probability distribution functions of the energy and magnetisation of the two-dimensional Blume-Capel and Baxter-Wu models with spin values in…
Two-dimensional dilute Baxter-Wu model: Transition order and universality
A. R. S. Macedo, A. Vasilopoulos, M. Akritidis +3
We investigate the critical behavior of the two-dimensional spin- Baxter-Wu model in the presence of a crystal-field coupling with the goal of determining the universality c…
Study of the ground state and thermodynamic properties of Cu5-NIPA-like molecular nanomagnets
J. Torrico, J. A. Plascak
The thermodynamic properties of a spatially anisotropic spin-1/2 Heisenberg model for a Cu pentameric molecule is studied through exact diagonalization. The elementary geometry…
Coexistence of spontaneous dimerization and magnetic order in a transverse-field Ising ladder with four-spin interactions
J. C. Xavier, R. G. Pereira, M. E. S. Nunes +1
The spin-1/2 transverse field two-leg Ising ladder with nearest-neighbor exchange and plaquette four-spin interaction is studied analytically and numerically with the densi…
Ground state and thermodynamic properties of spin-1/2 isosceles Heisenberg triangles for V-like magnetic molecules
J. Torrico, J. A. Plascak
The spin-1/2 Hamiltonian for two coupled isosceles Heisenberg triangles, which is well suited for describing the V-type magnetic molecules, is studied by exact diagonalization.…
Phase diagram for the spin-3/2 quantum ferromagnetic Blume-Capel model in a transverse crystal field: an approximation at the mean-field level
D. C. Carvalho, J. A. Plascak
We investigate the phase diagram for the spin- ferromagnetic Blume-Capel model in a transverse crystal field using the standard mean-field approximation within the framework o…