TITLE:
Magnetic Properties of a Mixed-Spin-3/2 and Spin-2 Ising Ferrimagnetic System in an Applied Longitudinal Magnetic Field
AUTHORS:
Fathi Abubrig
KEYWORDS:
Mixed-Spin; Ising; Susceptibility
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.3 No.2,
May
23,
2013
ABSTRACT:
The magnetic properties of a mixed Ising ferrimagnetic system consisting of spin-3/2 and spin-2 with different single ion anisotropies and under the effect of an applied longitudinal magnetic field are investigated within the mean-field theory based on Bogoliubov inequality for the Gibbs free energy. The ground-state phase diagram is constructed. The thermal behaviours of magnetizations and magnetic susceptibilities are examined in detail. Finally, we find some interesting phenomena in these quantities, due to applied longitudinal magnetic field.