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(BaTiO3)1-x + (Co0.5Ni0.5Nb0.06Fe1.94O4)x nanocomposites: Structure,morphology, magnetic and dielectric properties |
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| Authors: | Yassine Slimani Sagar E Shirsath Essia Hannachi Munirah A Almessiere Moustafa M Aouna Nouf E Aldossary Ghulam Yasin Abdulhadi Baykal Bekir Ozçelik Ismail Ercan |
| Affiliation: | 1. Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;2. School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales, Australia;3. Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;4. IRMC-SRP-2020 Research Program, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
Department of Civil Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;5. IRMC-SRP-2020 Research Program, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia Department of Applied Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;6. Institute for Advanced Study, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China;7. Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;8. Department of Physics, Faculty of Science and Letters, Cukurova University, Balcali-Adana, Turkey |
| Abstract: | Two phase-based nanocomposites consisting of dielectric barium titanate (BaTiO3 or BTO) and magnetic spinel ferrite Co0.5Ni0.5Nb0.06Fe1.94O4 (CNNFO) have been synthesized through solid state route. Series of (BaTiO3)1-x + (Co0.5Ni0.5Nb0.06Fe1.94O4)x nanocomposites with x content of 0.00, 0.25, 0.50, 0.75, and 1.00 were considered. The structure has been examined via X-rays diffraction (XRD) and indicated the occurrence of both perovskite BTO and spinel CNNFO phases in various nanocomposites. A phase transition from tetragonal BTO structure to cubic structure occurs with inclusion of CNNFO phase. The average crystallites size of BTO phase decreases, whereas that for the CNNFO phase increases with increasing x in various nanocomposites. The morphological observations revealed that the porosity is highly reduced, and the connectivity between grains is enhanced with increasing x content. The optical properties have been investigated by UV?vis diffuse reflectance spectroscopy. The deduced band gap energy (Eg) value is found to reduce with increasing the content of spinel ferrite phase. The magnetic as well as the dielectric properties were also investigated. The analysis showed that CNNFO ferrite phase greatly affects the magnetic properties and dielectric response of BTO material. The obtained findings can be useful to enhance the performances of magneto-dielectric composite-based systems. |
| Keywords: | barium titanite dielectric properties morphology nanocomposite spinel ferrite structure |