| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000383811 |
| ISSN: | 0035-001X |
| Authors: | Espriella Vélez, N. de la1 Madera Yancez, J2 Páez Mesa, M.S3 |
| Institutions: | 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 |
| Year: | 2014 |
| Season: | Nov-Dic |
| Volumen: | 60 |
| Number: | 6 |
| Pages: | 419-424 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | 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 |
| Keyword: | 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 |
| Full text: | Texto completo (Ver PDF) |
