Effect of Temperature on Magnetization Curves near Curie Point in LaFeCoSi Alloy
R. Gozdura, P. Gębarab, K. Chwastekc
aŁódź University of Technology, Department of Semiconductor and Optoelectronics Devices, Wólczańska 211/215, 90-924 Łódź, Poland
bInstitute of Physics, Czestochowa University of Technology, al. Armii Krajowej 19, 42-200 Czestochowa, Poland
cFaculty of Electrical Engineering, Częstochowa University of Technology, al. Armii Krajowej 17, 42-200 Częstochowa, Poland
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Analytical description of the effect of temperature on magnetization curves can be of interest to practitioners working on magnetocaloric effect. This paper compares two models, derived from the phenomenological T(x) model. The hybrid product-T(x) model offers an improved description of magnetization for temperatures close to the Curie point, as compared with the original model with the linear reversibility term, which is verified using experimental data for La(Fe,Co,Si)13 magnetocaloric alloy.

DOI:10.12693/APhysPolA.137.918
PACS numbers: 75.30.Sg, 75.50.Bb