Critical behavior and magnetocaloric effect in La0.7Ba0.25Nd0.05Mn1-xCuxO3
Source abstract
Abstract
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 TC 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 TC, which decreased with Cu content. The SOPT nature of compounds was confirmed by both the universal curves and scaling hypothesis.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Shape Memory Alloy Transformations
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Chungbuk National University 1 , Cheongju 28644, South Korea
Department of Physics Education, Syarif Hidayatullah State Islamic University 2 , Jakarta 15412, Indonesia
Department of Physics, Universitas Indonesia 3 , Depok 16424, Indonesia
Functional Materials Department, Korea Institute of Materials Science 4 , Changwon 51508, South Korea
Funding
Korea Basic Science Institute · National Research Foundation of Korea
References (33)
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