Revista: | Revista mexicana de física |
Base de datos: | PERIÓDICA |
Número de sistema: | 000383811 |
ISSN: | 0035-001X |
Autors: | Espriella Vélez, N. de la1 Madera Yancez, J2 Páez Mesa, M.S3 |
Institucions: | 1Universidad de Córdoba, Departamento de Física, Montería, Córdoba. Colombia 2Universidad del Sinú-Elías Bechara Zainúm, Departamento de Ciencias Básicas, Montería, Córdoba. Colombia 3Universidad de Córdoba, Departamento de Química, Montería, Córdoba. Colombia |
Any: | 2014 |
Període: | Nov-Dic |
Volum: | 60 |
Número: | 6 |
Paginació: | 419-424 |
País: | México |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Analítico, teórico |
Resumen en inglés | We used a Monte Carlo simulation to analize the magnetic behavior of Ising model of mixed spins SiA= ±3/2, ±1/2 and σjB = ±5/2, ±3/2, ±1/2, on a square lattice. Were studied the possible critical phenomena that may emerge in the region around the multiphase point (D/|J1|= —3, J2/|J1| = 1) and the dependence of the phase diagrams with the intensities of the anisotropy field of single ion (D/|J1|) and the ferromagnetic coupling of exchange spin SiA (J2/|J1|). The system displays first order phase transitions in a certain range of the parameters of the Hamiltonian, which depend on D/|J1| and |J2\|J1|. In the plane (D/|J1|,kBT/|J1|), the decrease of |D/|J1||, implies that the critical temperature, Tc, increases and the first order transition temperature, Tt, decreases. In the plane (J2/|J1|, kB T/|J1|), Tc increases with the increasing of J2/|J1|, while that Tt decreases |
Disciplines | Física y astronomía |
Paraules clau: | Física de materia condensada, Modelo de Ising, Anisotropía, Simulación de Montecarlo, Temperatura crítica |
Keyword: | Physics and astronomy, Condensed matter physics, Ising model, Single-ion anisotropy, Monte Carlo simulation, Critical temperature |
Text complet: | Texto completo (Ver PDF) |