Investigation of the effect of sintering temperature on structural, magnetic and magnetocaloric properties in PrCaMn2O6 double perovskite manganite system
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Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We have studied the effect of sintering temperature change on structural, magnetic and magnetocaloric properties of PrCaMn2O6 compound. The samples were produced by using solid-state-reaction process and then sintered at 1000, 1100 and 1200 degrees C temperatures. The Rietveld refinement results indicate that the crystal symmetry of the produced samples is tetragonal with P4mm space group. All samples include impurity phase, and their percentages decrease with increasing sintering temperature. Scanning electron Microscope images show that grain sizes of samples increase with increasing T-S. Energy-dispersive X-ray spectra indicate that samples include all required starting elements. Temperature-dependent magnetization measurements show that samples have the Curie temperatures as 42.6, 43.1, and 42.8 K for samples sintered at 1000, 1100 and 1200 degrees C, respectively. Magnetic entropy change values are found as 1.19, 1.59 and 1.72 J kg(-1) K-1 at 5 T magnetic field change for samples sintered at 1000, 1100 and 1200 degrees C, respectively. Relative cooling power values are calculated as 14.28, 20.54 and 17.20 J kg(-1) for samples sintered at 1000, 1100 and 1200 degrees C, respectively. The universal curve and the Arrott plots show that magnetic phase transition type of all samples is second order.
Açıklama
Anahtar Kelimeler
Crystallography Open Database, Open-Access Collectıon, Phase-Transıtıons, Double-Exchange, Behavıor
Kaynak
Journal of Materials Science-Materials in Electronics
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
33
Sayı
10
