<abstract xmlns="http://www.w3.org/1999/xhtml">

This work reported the successful synthesis of ilmenite-spinel (1 − <italic>x</italic>)NiTiO3-<italic>x</italic>MnFe2O4 (<italic>x</italic> = 0, 0.05 and 0.10) composites by a simple sol-gel method. Phase formation of composites was analyzed by the X-ray diffraction method. All the synthesized samples formed diphasic ilmenite-ferrite composites without any trace of impurity or intermediate phase. The optical properties of synthesized composites were characterized by diffuse reflectance UV–visible spectroscopy. MnFe2O4 phase modified the optical band gap of NiTiO3 material and shifted its optical bandgap value toward lower energy. Ferroelectric and magnetic hysteresis loops were investigated at room temperature. The hysteresis loops indicated the typical ferromagnetic and ferroelectric nature of all composites at room temperature. In P-E loops, the remanent polarization (<italic>Pr</italic>) and saturation polarization (<italic>Ps</italic>) showed a slight increase in the sample with 5% MnFe2O4 phase addition. However, the lossy <italic>P-E</italic> loop was observed in the sample with the addition of 10% MnFe2O4. The presence of ferrite MnFe2O4 phase in NiTiO3 material enhanced the magnetic properties of NiTiO3 at room temperature. The <italic>M-H</italic> loops of NiTiO3-MnFe2O4 composites presented a ferromagnetic behavior with a dramatic increase in saturation magnetization with an increase of ferrite phase addition.
</abstract>

This work reported the successful synthesis of ilmenite-spinel (1 − x)NiTiO3-xMnFe2O4 (x = 0, 0.05 and 0.10) composites by a simple sol-gel method. Phase formation of composites was analyzed by the X-ray diffraction method. All the synthesized samples formed diphasic ilmenite-ferrite composites without any trace of impurity or intermediate phase. The optical properties of synthesized composites were characterized by diffuse reflectance UV–visible spectroscopy. MnFe2O4 phase modified the optical band gap of NiTiO3 material and shifted its optical bandgap value toward lower energy. Ferroelectric and magnetic hysteresis loops were investigated at room temperature. The hysteresis loops indicated the typical ferromagnetic and ferroelectric nature of all composites at room temperature. In P-E loops, the remanent polarization (Pr) and saturation polarization (Ps) showed a slight increase in the sample with 5% MnFe2O4 phase addition. However, the lossy P-E loop was observed in the sample with the addition of 10% MnFe2O4. The presence of ferrite MnFe2O4 phase in NiTiO3 material enhanced the magnetic properties of NiTiO3 at room temperature. The M-H loops of NiTiO3-MnFe2O4 composites presented a ferromagnetic behavior with a dramatic increase in saturation magnetization with an increase of ferrite phase addition.

NiTiO3/MnFe2O4 ferrite composites: synthesis, optical, ferroelectric and magnetic properties

Ha Noi University of Science and Technology

School of Materials Science and Engineering

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

NiTiO/MnFeO ferrite composites: synthesis, optical, ferroelectric and magnetic properties

This work reported the successful synthesis of ilmenite-spinel (1 − x)NiTiO3-xMnFe2O4 (x = 0, 0.05 and 0.10) composites by a simple sol-gel method. Phase...

NiTiO₃/MnFe₂O₄ ferrite composites: synthesis, optical, ferroelectric and magnetic properties

Publicado en línea: 24 mar 2023

Páginas: 43 - 53

Recibido: 03 dic 2022

Aceptado: 31 ene 2023

DOI: https://doi.org/10.2478/msp-2022-0045

Palabras clave
Sol-gel processes, NiTiO, MnFeO, composites, ferroelectric properties, magnetic properties

© 2022 Dang Thi Thom et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

NiTiO3/MnFe2O4 ferrite composites: synthesis, optical, ferroelectric and magnetic properties

Publicado en línea: 24 mar 2023

Páginas: 43 - 53

Recibido: 03 dic 2022

Aceptado: 31 ene 2023

DOI: https://doi.org/10.2478/msp-2022-0045

Palabras claveSol-gel processes, NiTiO, MnFeO, composites, ferroelectric properties, magnetic properties

© 2022 Dang Thi Thom et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

NiTiO₃/MnFe₂O₄ ferrite composites: synthesis, optical, ferroelectric and magnetic properties

Palabras clave
Sol-gel processes, NiTiO, MnFeO, composites, ferroelectric properties, magnetic properties