Synthesis and high-frequency magnetoelectric characterization of the 0–3 particulate lead-free multiferroic composite KNN/CFO

The research for lead-free magnetoelectric (ME) multiferroic composite materials has increased considerably because they are environmentally friendly. For composites with 0-3 connectivity, synthesis with lead-free phase has proven challenging to obtain high values of ME coupling. This work reports t...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2024-08, Vol.36 (33), p.335703
Main Authors: Gualdi, Alexandre José, Dos Santos Batacline, Leonardo, Correia Espírito Santo, Gustavo, Alkathy, Mahmoud S, Zabotto, Fabio Luis
Format: Article
Language:English
Subjects:
lead-free ceramics
magnetoelectricity
multiferroic composite
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Summary:The research for lead-free magnetoelectric (ME) multiferroic composite materials has increased considerably because they are environmentally friendly. For composites with 0-3 connectivity, synthesis with lead-free phase has proven challenging to obtain high values of ME coupling. This work reports the successful synthesis of the KNN/CFO composite (K N NbO /CoFe O ) by conventional synthesis process. XRD and SEI showed two well-defined, also presenting good electric polarization values. The ME coefficient was very high, reaching values close to 2850 mV cm ·Oe at the electromechanical resonance frequency. The dipolar interaction between the electric charges and magnetic moments of the KNN and CFO phases was responsible for the high value and the behavior of dependence on the applied magnetic field.
ISSN:0953-8984
1361-648X
DOI:10.1088/1361-648X/ad48f0