期刊
AIP ADVANCES
卷 9, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5079842
关键词
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资金
- National Research Foundation of Korea through the Korea-Russia joint collaboration project [2017K1A3A1A49070064]
- National Research Foundation of Korea [2018R1A2B3009569]
- KBSI Grant [D38614]
In this work, the magnetic and magnetocaloric properties of La0.7Ba0.25Nd0.05Mn1-xCuxO3 samples (x = 0 - 0.07) synthesized by the sol-gel method are presented. The compounds exhibited a second-order phase transition (SOPT) of ferromagnetic-paramagnetic (FM-PM) phase transition following Banerjee's criterion. Curie temperature T-C decreased with increasing doping concentration. The critical behavior analysis using modified Arrott plots (MAP) showed a short-range FM ordering. Significant entropy change of samples was observed near the T-C, which decreased with Cu content. The SOPT nature of compounds was confirmed by both the universal curves and scaling hypothesis. (C) 2019 Author(s).
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