Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites
La–Y substituted Ni-Cu-Zn nanospinel ferrites (NSFs) having the following formula Ni0.3Cu0.3Zn0.4LaxYxFe2−2xO4 (x = 0.0–0.10) were fabricated prepared by ultrasonic irradiation approach. The X-ray powder diffractometer (XRD), scanning electron microscope (SEM) and Fourier-transform infrared spectros...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-12-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379719326300 |
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| author | M.A. Almessiere B. Ünal Y. Slimani A.D. Korkmaz A. Baykal I. Ercan |
| author_facet | M.A. Almessiere B. Ünal Y. Slimani A.D. Korkmaz A. Baykal I. Ercan |
| author_sort | M.A. Almessiere |
| collection | DOAJ |
| description | La–Y substituted Ni-Cu-Zn nanospinel ferrites (NSFs) having the following formula Ni0.3Cu0.3Zn0.4LaxYxFe2−2xO4 (x = 0.0–0.10) were fabricated prepared by ultrasonic irradiation approach. The X-ray powder diffractometer (XRD), scanning electron microscope (SEM) and Fourier-transform infrared spectroscopy (FT-IR) were utilized to analyze the structure, vibration bands and morphology. The impedance spectroscopy technique was used for the analysis of electrical and dielectric properties of La3+ and Y3+ ions co-substituted Ni0.3Cu0.3Zn0.4Fe2O4 NSFs. Some important parameters such as ac conductivity, activation energy, dielectric constant and dielectric loss were examined as functions of frequencies and temperatures for a variety of La and Y co-substitution ratios. In general, ac conductivity is observed to fluctuate slightly with the elevated temperatures while its fluctuation level decreases somehow with an increase in co-substitution ratios. Furthermore, the frequency dependence of dielectric functions could be described by Koop's models based on Maxwell-Wagner theory, which elucidates the correlation between the polarizability coefficient and dielectric constant in inhomogeneous double-layer structures. Keywords: Spinel ferrites, Rare earth substitutions, Conductivity, Dielectric properties |
| first_indexed | 2024-04-14T05:20:22Z |
| format | Article |
| id | doaj.art-71d7d72dc5b749f5ba1eb5618de48b4a |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-14T05:20:22Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-71d7d72dc5b749f5ba1eb5618de48b4a2022-12-22T02:10:12ZengElsevierResults in Physics2211-37972019-12-0115Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferritesM.A. Almessiere0B. Ünal1Y. Slimani2A.D. Korkmaz3A. Baykal4I. Ercan5Department of Biophysics, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia; Corresponding author at: Department of Biophysics, Institute for Research & Medical Consultations (IRMC), Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia.Institute of Forensic Sciences & Legal Medicine, and Institute of Nanotechnology & Biotechnology, Istanbul University – Cerrahpaşa, Buyukcekmece Campus, Alkent 2000 Mah., Buyukcekmece, Istanbul 34500, TurkeyDepartment of Biophysics, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi ArabiaDepartment of Chemistry, Istanbul Medeniyet University, 34700 Istanbul, Uskudar, TurkeyDepartment of Nano-Medicine Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi ArabiaDepartment of Biophysics, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi ArabiaLa–Y substituted Ni-Cu-Zn nanospinel ferrites (NSFs) having the following formula Ni0.3Cu0.3Zn0.4LaxYxFe2−2xO4 (x = 0.0–0.10) were fabricated prepared by ultrasonic irradiation approach. The X-ray powder diffractometer (XRD), scanning electron microscope (SEM) and Fourier-transform infrared spectroscopy (FT-IR) were utilized to analyze the structure, vibration bands and morphology. The impedance spectroscopy technique was used for the analysis of electrical and dielectric properties of La3+ and Y3+ ions co-substituted Ni0.3Cu0.3Zn0.4Fe2O4 NSFs. Some important parameters such as ac conductivity, activation energy, dielectric constant and dielectric loss were examined as functions of frequencies and temperatures for a variety of La and Y co-substitution ratios. In general, ac conductivity is observed to fluctuate slightly with the elevated temperatures while its fluctuation level decreases somehow with an increase in co-substitution ratios. Furthermore, the frequency dependence of dielectric functions could be described by Koop's models based on Maxwell-Wagner theory, which elucidates the correlation between the polarizability coefficient and dielectric constant in inhomogeneous double-layer structures. Keywords: Spinel ferrites, Rare earth substitutions, Conductivity, Dielectric propertieshttp://www.sciencedirect.com/science/article/pii/S2211379719326300 |
| spellingShingle | M.A. Almessiere B. Ünal Y. Slimani A.D. Korkmaz A. Baykal I. Ercan Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites Results in Physics |
| title | Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites |
| title_full | Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites |
| title_fullStr | Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites |
| title_full_unstemmed | Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites |
| title_short | Electrical properties of La3+ and Y3+ ions substituted Ni0.3Cu0.3Zn0.4Fe2O4 nanospinel ferrites |
| title_sort | electrical properties of la3 and y3 ions substituted ni0 3cu0 3zn0 4fe2o4 nanospinel ferrites |
| url | http://www.sciencedirect.com/science/article/pii/S2211379719326300 |
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