Abstract
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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Acknowledgements
The authors are grateful to Dr. M. Guseinov (Amirkhanov Institute of Physics Daghestan Scientific Center, Russian Academy of Sciences) and Dr. K. Chichay (Immanuel Kant Baltic Federal University) for the help in measurements.
Funding
This work was partially supported by projects “Phase transitions, magnetotransport, magnetocaloric, magnetoelectric phenomena in strongly correlated electron systems” (No. 0203-2016-0009) at the Institute of Physics of Dagestan Scientific Center of Russian Academy of Sciences and 5 top 100 Russian Academic Excellence Project at the Immanuel Kant Baltic Federal University. The work was partially supported by the Ukrainian State Foundation for Basic Research, project F71/46-2017.
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Amirov, A.A., Makoed, I.I., Chaudhari, Y.A. et al. Magnetocaloric Effect in BiFe1−xZnxO3 Multiferroics. J Supercond Nov Magn 31, 3283–3288 (2018). https://doi.org/10.1007/s10948-018-4590-2
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DOI: https://doi.org/10.1007/s10948-018-4590-2