Numerical Study of a Mixed Ising Ferrimagnetic System

Abstract

We present a study of a classical ferrimagnetic model on a square lattice in which the two interpenetrating square sublattices have spins one-half and one. This model is relevant for understanding bimetallic molecular ferrimagnets that are currently being synthesized by several experimental groups. We perform exact ground-state calculations for the model and employ Monte Carlo and numerical transfer-matrix techniques to obtain the finite-temperature phase diagram for both the transition and compensation temperatures. When only nearest-neighbor interactions are included, our nonperturbative results indicate no compensation point or tricritical point at finite temperature, which contradicts earlier results obtained with mean-field analysis.

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Cited by in corpus (11)

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• Study of the mixed Ising spins (1/2,3/2) in a random crystal field
• Phase diagram of a mixed spin-1 and spin-3/2 Ising ferrimagnet
• Mixed spin-1/2 and spin-1 Ising ferromagnets on a triangular lattice
• Spin dependence of the tricritical point in the mixed-spin Blume-Capel model on three-dimensional lattices: Metropolis and Wang-Landau sampling approaches
• Dependence on dilution of critical and compensation temperatures of a two dimensional mixed spin-1/2 and spin-1 system
• Critical and tricritical behavior of a selectively diluted triangular Ising antiferromagnet in a field
• Thermodynamical behavior of the Blume-Capel model in the vicinity of its tricritical point
• Frustrated mixed spin-1/2 and spin-1 Ising ferrimagnets on a triangular lattice
• Crystalline Field Effects on Magnetic and Thermodynamic properties of a Ferrimagnetic Centered Rectangular Structure
• Magnetic Behaviour of Disordered Ising Ferrimagnet in High Magnetic Field