Structural, Dielectric, Electrical, and Magnetic Characteristics of Bi<sub>0.8</sub>Ba<sub>0.1</sub>Er<sub>0.1</sub>Fe<sub>0.96</sub>Cr<sub>0.02</sub>Mn<sub>0.02</sub>O<sub>3</sub> Nanoparticles
oleh: A. Bougoffa, E. M. Benali, A. Benali, A. Tozri, E. Dhahri, M. P. Graça, M. A. Valente, B. F. O. Costa
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2024-05-01 |
Deskripsi
Bi<sub>0.8</sub>Ba<sub>0.1</sub>Er<sub>0.1</sub>Fe<sub>0.96</sub>Cr<sub>0.02</sub>Mn<sub>0.02</sub>O<sub>3</sub> (BBEFCMO) multiferroic ceramic was synthesized through the sol-gel route. The impact of incorporating various dopants into both A and B sites of the BiFeO<sub>3</sub> was investigated, and structural, Raman, dielectric, electric, and magnetic properties were studied. X-ray diffraction analysis and Raman spectroscopy revealed a rhombohedral structure with the <i>R3c</i> space group for the doped material (BBEFCMO). Dielectric properties were examined across a frequency range of 10<sup>2</sup>–10<sup>6</sup> Hz. The present multiferroic material exhibits a colossal dielectric constant and minimal dielectric loss tangent, making it suitable for applications in energy storage. Furthermore, the Cole-Cole type of relaxation was deduced from the imaginary part of the modulus for both grain and boundary-grain contributions. Overall, this study indicates that substituting ions in both A and B sites of BiFeO<sub>3</sub> significantly enhances its multiferroic properties, as evidenced by dielectric and magnetic measurements.