Abstract
Composite multiferroic materials were prepared using the conventional ceramic double sintering process, with composition of Ґ BaTiO3/(1 − Ґ) Cu0.3Ni0.1Zn0.6Fe2O4, where Ґ represents the mass fraction of the ferroelectric phase ranging from 0.3 to 0.9. The behavior of the bulk composites under external dynamic magnetic and electric fields was studied as a function of the ferroelectric phase content. The objective of this work is to establish a relationship between the irreversibility process and magnetic and electrical losses in composite magnetoelectric materials. Experimental measurements were correlated with the entropy production of materials. The results allow us to infer that in the explored frequency range (from 1 MHz to 1.8 GHz), entropy production not only decreases as the ferroelectric phase content increases but is also related to the magnetic losses.
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The data and code generated during this study are available upon request from the corresponding author. Please contact mruiz@fi.uba.ar for access to the data and code.
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Acknowledgments
We would like to express our gratitude to Prof. Dra. Silvia E. Jacobo for her valuable contributions and insightful discussions that greatly enhanced the quality of this research. Her expertise and guidance have been instrumental in the development of this study. There was no funding source that supported the submitted research.
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MSR: Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing—original draft, Writing—review & editing. AR: GTerNEQ director.
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Ruiz, M.S., Razzitte, A. Study of Entropy Production of Magnetoelectric Multiferroic Materials. J. Electron. Mater. 53, 1600–1605 (2024). https://doi.org/10.1007/s11664-023-10876-y
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DOI: https://doi.org/10.1007/s11664-023-10876-y