Magnetic properties of (La0.56Ce0.14)Sr0.30MnO3 perovskite

• Appropriate model based on experimental observations is proposed for LaCeSrMnO3.
• Monte Carlo simulations are compared to experiments to deduce exchange interactions.
• Good agreement with experiments on magnetization vs temperature T.
• Good agreement with experiments on magnetizations vs applied field H.

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 Mn3+ (S=2S=2), Mn4+ (S=3/2S=3/2) and Ce3+ (S=1/2S=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.