# Kinetics of a mixed spin-1/2 and spin-3/2 Ising ferrimagnetic model

Source: [Kinetics of a mixed spin-1/2 and spin-3/2 Ising ferrimagnetic model](<https://www.sota2.com/research/paper/68fa23782c2a376019398278>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:52:31.737Z

Authors: B. Deviren, M. Keskin, O. Canko

Published: 2008-09-15T07:22:52.000Z

## Abstract

We present a study, within a mean-field approach, of the kinetics of a mixed ferrimagnetic model on a square lattice in which two interpenetrating square sublattices have spins that can take two values, $\\sigma=\\pm1/2$, alternated with spins that can take the four values, $S=\\pm3/2, \\pm1/2$. We use the Glauber-type stochastic dynamics to describe the time evolution of the system with a crystal-field interaction in the presence of a time-dependent oscillating external magnetic field. The nature (continuous and discontinuous) of transition is characterized by studying the thermal behaviors of average order parameters in a period. The dynamic phase transition points are obtained and the phase diagrams are presented in the reduced magnetic field amplitude $(h)$ and reduced temperature $(T)$ plane, and in the reduced temperature and interaction parameter planes, namely in the $(h, T)$ and $(d, T)$ planes, $d$ is the reduced crystal-field interaction. The phase diagrams always exhibit a tricritical point in $(h, T)$ plane, but do not exhibit in the $(d, T)$ plane for low values of $h$. The dynamic multicritical point or dynamic critical end point exist in the $(d, T)$ plane for low values of $h$. Moreover, phase diagrams contain paramagnetic $(p)$, ferromagnetic $(f)$, ferrimagnetic $(i)$ phases, two coexistence or mixed phase regions, $(f+p)$ and $(i+p)$, that strongly depend on interaction parameters.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/0809.2450>)

[PDF](<https://arxiv.org/pdf/0809.2450.pdf>)