Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite
In this research work, we report synthesis, structural, electric and magnetic properties of Cu1−XCoXFe2O4(x = 0.05, 0.10, 0.15, 0.20) nanoferrite. All the samples are synthesized using sol-gel auto-combustion method. X-ray diffraction patterns validate the formation of single phase tetragonal struct...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Chemical Physics Impact |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667022424001361 |
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| author | Sudhir Minz S.C. Sahoo S.K. Rout Manoranjan Kar Banarji Behera |
| author_facet | Sudhir Minz S.C. Sahoo S.K. Rout Manoranjan Kar Banarji Behera |
| author_sort | Sudhir Minz |
| collection | DOAJ |
| description | In this research work, we report synthesis, structural, electric and magnetic properties of Cu1−XCoXFe2O4(x = 0.05, 0.10, 0.15, 0.20) nanoferrite. All the samples are synthesized using sol-gel auto-combustion method. X-ray diffraction patterns validate the formation of single phase tetragonal structure at room temperature for all the samples. Absence of secondary phases confirms the successful substitution of Cu2+ by Co2+ ions in CuFe2O4 matrix. Dielectric analysis reveals that all the materials exhibit remarkable single dielectric relaxation. The dielectric relaxation peaks are observed between 150–225 °C. In addition, Co-doped CuFe2O4 exhibit marked enhancement of dielectric constant value for potential technological applications. Further, the correlated barrier hopping (CBH) model well explains the conduction phenomena in all the samples. Activation energy values are analyzed by applying the Arrhenius equation. Impedance analysis indicates that both grain and grain boundary effects contributed the electrical response in the ferrites which is confirmed from the plot of Z″ vs. Z′. The bulk and grain boundary response are further determined by modeling the impedance data with an equivalent circuit. Modulus study confirms the existence of non-Debye type of relaxation in the synthesized ferrites. Magnetic study shows the improved value of magnetic parameters such as saturation magnetization (Ms), remanent magnetization (Mr) and coercive field (Hc). |
| first_indexed | 2024-04-24T12:31:56Z |
| format | Article |
| id | doaj.art-964965a35ecc46dfbc4b1bfa592fa098 |
| institution | Directory Open Access Journal |
| issn | 2667-0224 |
| language | English |
| last_indexed | 2024-04-24T12:31:56Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Physics Impact |
| spelling | doaj.art-964965a35ecc46dfbc4b1bfa592fa0982024-04-08T04:08:43ZengElsevierChemical Physics Impact2667-02242024-06-018100592Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferriteSudhir Minz0S.C. Sahoo1S.K. Rout2Manoranjan Kar3Banarji Behera4School of Physics, Sambalpur University, Jyoti Vihar, Burla, Odisha 768019, IndiaDepartment of Physics, Central University of Kerala, Kerala 671320, IndiaDepartment of Physics, BIT, Mesra, Ranchi 835215, IndiaDepartment of Physics, IIT, Bihta, Patna 801106, IndiaSchool of Physics, Sambalpur University, Jyoti Vihar, Burla, Odisha 768019, India; Corresponding author.In this research work, we report synthesis, structural, electric and magnetic properties of Cu1−XCoXFe2O4(x = 0.05, 0.10, 0.15, 0.20) nanoferrite. All the samples are synthesized using sol-gel auto-combustion method. X-ray diffraction patterns validate the formation of single phase tetragonal structure at room temperature for all the samples. Absence of secondary phases confirms the successful substitution of Cu2+ by Co2+ ions in CuFe2O4 matrix. Dielectric analysis reveals that all the materials exhibit remarkable single dielectric relaxation. The dielectric relaxation peaks are observed between 150–225 °C. In addition, Co-doped CuFe2O4 exhibit marked enhancement of dielectric constant value for potential technological applications. Further, the correlated barrier hopping (CBH) model well explains the conduction phenomena in all the samples. Activation energy values are analyzed by applying the Arrhenius equation. Impedance analysis indicates that both grain and grain boundary effects contributed the electrical response in the ferrites which is confirmed from the plot of Z″ vs. Z′. The bulk and grain boundary response are further determined by modeling the impedance data with an equivalent circuit. Modulus study confirms the existence of non-Debye type of relaxation in the synthesized ferrites. Magnetic study shows the improved value of magnetic parameters such as saturation magnetization (Ms), remanent magnetization (Mr) and coercive field (Hc).http://www.sciencedirect.com/science/article/pii/S2667022424001361Inverse spinelSol-gel auto-combustionDielectricsImpedance |
| spellingShingle | Sudhir Minz S.C. Sahoo S.K. Rout Manoranjan Kar Banarji Behera Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite Chemical Physics Impact Inverse spinel Sol-gel auto-combustion Dielectrics Impedance |
| title | Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite |
| title_full | Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite |
| title_fullStr | Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite |
| title_full_unstemmed | Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite |
| title_short | Structural, magnetic, impedance and electric modulus response and dielectric relaxation in Co-doped inverse spinel CuFe2O4 nanoferrite |
| title_sort | structural magnetic impedance and electric modulus response and dielectric relaxation in co doped inverse spinel cufe2o4 nanoferrite |
| topic | Inverse spinel Sol-gel auto-combustion Dielectrics Impedance |
| url | http://www.sciencedirect.com/science/article/pii/S2667022424001361 |
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