TITLE:
Study of the Magnetocaloric Effect in La0.5Sm0.2Sr0.3Mn1-xFexO3 (x = 0 and 0.05) Manganites with the Mean-Field Theory
AUTHORS:
Amnah Alofi, Salha Khadhraui
KEYWORDS:
Manganites, Magnetization, Magnetocaloric Effect, Mean Field Model, Simulation
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.14 No.7,
July
30,
2024
ABSTRACT: In this paper, the magnetocaloric in La0.5Sm0.2Sr0.3Mn1-xFexO3 compounds with x = 0 (LSSMO) and x = 0.05 (LSSMFO) were simulated using mean field model theory. A strong consistency was observed between the theoretical and experimental curves of magnetizations and magnetic entropy changes,
−Δ
S
M
(
T
)
. Based on the mean-field generated
−Δ
S
M
(
T
)
, the substantial Temperature-averaged Entropy Change (TEC) values reinforce the appropriateness of these materials for use in magnetic refrigeration technology within TEC (10) values of 1 and 0.57 J∙kg−1∙K−1under 1 T applied magnetic field.