Journal
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Volume 31, Issue 10, Pages 3283-3288Publisher
SPRINGER
DOI: 10.1007/s10948-018-4590-2
Keywords
Multiferroics; Phase transitions; Magnetocaloric effect; Entropy; Relative cooling power; Heat capacity
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Funding
- projects Phase transitions, magnetotransport, magnetocaloric, magnetoelectric phenomena in strongly correlated electron systems at the Institute of Physics of Dagestan Scientific Center of Russian Academy of Sciences [0203-2016-0009]
- 5 top 100 Russian Academic Excellence Project at the Immanuel Kant Baltic Federal University
- Ukrainian State Foundation for Basic Research [F71/46-2017]
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Ceramic BiFe1-xZnxO3 multiferroic samples were prepared by the solid combustion method for x =0.1, 0.15, and 0.2. Structural, magnetic, and magnetocaloric properties of the multiferroics have been studied. For all samples, an antiferromagnetic phase transition is observed in the region of 630 K. With increase in x, the reduction in magnitude of magnetization and Neel temperature is observed. The magnetocaloric properties, entropy, relative cooling power, and heat capacity have been calculated within the framework of thermodynamic theory. It has been established that the maximum changes of magnetocaloric properties of multiferroics are observed in the region of magnetic phase transition.
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