{Reference Type}: Journal Article {Title}: Theoretical work on magnetocaloric effect in La0.75Ca0.25MnO3 {Author}: Mahmoud Aly, HAMAD {Journal}: Journal of Advanced Ceramics {ISBN/ISSN}: 2226-4108 {Year}: 2012 {Volume}: 1 {Issue}: 4 {Pages}: 290-295 {DOI}: 10.1007/s40145-012-0027-8 {Keywords}: magnetocaloric effect {Keywords}: model {Keywords}: magnetic entropy change {Keywords}: heat capacity change {Keywords}: relative cooling power {Abstract}: In this work, a phenomenological model is applied to describe the magnetocaloric effect for the La0.75Ca0.25MnO3 system near a second-order phase transition from a ferromagnetic to a paramagnetic state. Based on this model, it can predict the values of the magnetocaloric properties from calculation of magnetization as a function of temperature under different external magnetic fields. The magnetic entropy change reaches a peak of about 5.39 J/(kg·K) at 257 K upon 4 T applied field variation. The ∆SM distribution is much more uniform than that of gadolinium, which is desirable for an Ericson-cycle magnetic refrigerator. {URL}: https://www.sciopen.com/article/10.1007/s40145-012-0027-8 {Language}: en