Article ID Journal Published Year Pages File Type
7998842 Journal of Alloys and Compounds 2015 21 Pages PDF
Abstract
Using Monte Carlo method, we study the magnetic proprieties of La2FeCoO6 double perovskite. First, we elaborate the ground state phase diagrams in different planes: (R1, R2), (R1, d), (R2, d), (R1, h), (R2, h) and (h, d), where, the reduced parameters R1 = JFe-Fe/JFe-Co, R2 = JCo-Co/JFe-Co, d = Δ/JFe-Co and h = H/JFe-Co represent the reduced Fe-Fe, Co-Co exchange coupling interactions, the reduced crystal field and the reduced external magnetic field, respectively. We show that the only stable configurations in these planes are: (±2, ±1/2), (±1, ±1/2) and (0, ±1/2). Then, we investigate the thermal behavior of the magnetizations and the susceptibilities of such a system for the ferromagnetic case. Moreover, we reveal that the increasing exchange Fe-Fe coupling effect increases the critical temperature. We also discuss the hysteresis cycle loops.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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