Abstract
We investigate in this paper magnetic properties of the perovskite compound
(La0.56Ce0.14)Sr0.30MnO3. The method we use here is Monte Carlo simulation, in
which we take into account different kinds of interactions between nearest and
between next-nearest magnetic ions Mn 3+ (S = 2) , Mn 4+ (S = 3/2) and Ce 3+ (S
= 1/2). Using a classical spin model, we have calculated the internal energy,
the magnetization per ion type and their corresponding magnetic susceptibility,
as well as the Edwards-Anderson order parameter for each ion kind. We also
studied the applied-field effect on the system magnetization. Our results show
a good agreement with experiments.