TITLE:
Critical Parameters and Magnetocaloric Effect of the La5/8Ca3/8Mn0.9750Pd0.025O3 Compound
AUTHORS:
L. V. Bau, N. M. An
KEYWORDS:
Magnetocaloric, Critical Parameters, Perovskite
JOURNAL NAME:
Materials Sciences and Applications,
Vol.5 No.12,
October
21,
2014
ABSTRACT: The La5/8Ca3/8Mn0.9750Pd0.025O3 compound was studied using DC magnetization measurements. The data were analyzed in the
paramagnetic-ferromagnetic phase transition region by the Arrott plot method. The results show the Curie temperature TC ~ 247.8 K and the critical
exponents of b = 0.48633, g = 1.18623 and d = 3.431682. The values of the critical exponents
are between the mean- field theory and 3D Ising model. The magnetocaloric value
is ~5 J/kgK, extracted from the M(H)
curves.