Random Crystal Field Effect on the Kinetic Spin-1 and Spin-3/2 Under a Time-Dependent Oscillating Field Phase Transitions

• Published in: Journal of superconductivity and novel magnetism Vol. 31; no. 7; pp. 2111 - 2120
• Main Authors: Sabri, S., EL Falaki, M., EL Yadari, M., Benyoussef, A., Kenz, A. EL
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-07-2018
• Subjects: Characterization and Evaluation of Materials; Condensed Matter Physics; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL FIELD; GLAUBER THEORY; KINETICS; LIMIT CYCLE; MAGNETIC FIELDS; Magnetic Materials; Magnetism; MEAN-FIELD THEORY; Original Paper; PHASE SPACE; PHASE TRANSFORMATIONS; Physics; Physics and Astronomy; SPIN; STOCHASTIC PROCESSES; Strongly Correlated Systems; Superconductivity; TIME DEPENDENCE; Random crystal field; Kinetic mixed spin system; Mean field approach
• ISSN: 1557-1939; 1557-1947
• DOI: 10.1007/s10948-017-4437-2

The effect of random crystal field on the stationary states of the kinetic spin-1 and spin-3/2 Blume-Capel model is investigated within the framework of the mean field approach. The Glauber-type stochastic dynamics is used to describe the time evolution of the system which is subjected to a time-dependent oscillating external magnetic field. The model exhibits first- and second-order transitions as well as dynamical tricritical, triple and an isolated critical end points. We found that the system displays reentrant phenomenon for both
α
= 0 and
α
> 0. Moreover, the system exhibits in the phase space a fixed points and limit cycles with circle, elliptic and parallelogram shapes.