Magnetic properties of a spin-1 Triangular Ising system

TL;DR

This study investigates the magnetic behaviors of a spin-1 Blume-Capel model on a site-diluted triangular lattice using effective-field theory, revealing complex phase diagrams, critical points, and hysteresis phenomena influenced by various physical parameters.

Contribution

It provides a detailed analysis of phase diagrams, critical points, and hysteresis behaviors of the spin-1 BC model on a triangular lattice, incorporating effects of dilution, exchange interaction, and crystal field.

Findings

Identification of tricritical, tetracritical, and critical end points.

Observation of single and double hysteresis loops.

Dependence of magnetic properties on physical parameters.

Abstract

We studied some magnetic behaviors of Blume-Capel (BC) model in a site diluted triangular lattice by means of the effective-field theory (EFT) with correlations. The effects of the exchange interaction (J), crystal field (D), concentration (p) and temperature (T) on the magnetic properties of spin-1 BC model in a triangular lattice such as magnetization, susceptibility, phase diagram and hysteresis behaviors are investigated, in detail. The phase diagrams of the system are presented in two different planes. The tricritical point as well as tetracritical and critical end special points are found as depending on the physical parameters of the system. Moreover, when the hysteresis behaviors of the system are examined, the single and double hysteresis loop are observed for various values of the physical parameters. We show that the hysteresis loops have different coercive field points in which the susceptibility make peak at these points.