Magnetic properties of mixed spin-3/2 and spin-5/2 ising ferrimagnetic system

被引：0

作者：

De La Espriella, Nicolás A. ^{[1
]}

Casiano, Gladys R. ^{[1
]}

Ortega, César ^{[1
]}

机构：

[1] Universidad de Córdoba, Departamento de Física y Electrónica, Facultad de Ciencias Básicas, Córdoba

来源：

Informacion Tecnologica | 2012年 / 23卷 / 02期

关键词：

Critical temperatures; Crystal field; Ising system; Magnetizations; Monte Carlo;

D O I：

10.4067/S0718-07642012000200015

中图分类号：

学科分类号：

摘要：

The magnetic properties of ferrimagnetic Ising system with mixed spins S = ±3/2, ±1/2 y σ = ±5/2, ±3/2, ±1/2 are studied. The spins are alternated on a square lattice, such that nearest-neighbor interactions occur between different spins (S↔σ), and interactions next nearest-neighbor between spins of the same type (σ k↔σ l). When the Hamiltonian includes couplings antiferromagnetic between spins S and σ, ferromagnetic and antiferromagnetic between spins σ and D crystal field, it was found that the critical temperature strongly depends on the values of the parameters of the Hamiltonian. The behavior at finite temperature of the total magnetization of the lattice, the magnetization of the sublattices and the total magnetic susceptibility are also studied, taking into account the effects of exchange coupling between next nearest-neighbor and the crystal field of the lattice. For the Hamiltonian studied, there are not compensation points..

引用

页码：129 / 140

页数：11

共 39 条

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