Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route
This communication reports a detail study on manganese (Mn) doping in CaCu3Ti4O12 (CCTO) ceramic (simultaneously doping copper and titanium site) with the help of X-ray Photoelectron Spectroscopy ( XPS), High Resolution - Scanning Electron Microscopy ( HR-SEM), High Resolution- Transmission Electron...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420317567 |
| _version_ | 1818560876901302272 |
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| author | Vinod Kumar Santosh Pandey Atendra Kumar Manish Kumar Verma Shruti Singh Vishnu Shankar Rai Dinesh Prajapati Tapas Das Ankur Sharma Champa Lal Prajapat Asnit Gangwar K.D. Mandal |
| author_facet | Vinod Kumar Santosh Pandey Atendra Kumar Manish Kumar Verma Shruti Singh Vishnu Shankar Rai Dinesh Prajapati Tapas Das Ankur Sharma Champa Lal Prajapat Asnit Gangwar K.D. Mandal |
| author_sort | Vinod Kumar |
| collection | DOAJ |
| description | This communication reports a detail study on manganese (Mn) doping in CaCu3Ti4O12 (CCTO) ceramic (simultaneously doping copper and titanium site) with the help of X-ray Photoelectron Spectroscopy ( XPS), High Resolution - Scanning Electron Microscopy ( HR-SEM), High Resolution- Transmission Electron Microscopy (HR-TEM ) and Raman spectra. The doping of manganese in CCTO ceramic, the dielectric constant was largely decreased due to Mn exist variable oxidation state like Mn+2, Mn+3and Mn+4 due to this reason the grains (GB) and grain boundaries (GBs) slightly behave conducting nature. Raman spectra show the existence of copper oxide and manganese oxide presence in the grain and grain boundary of CaCu2.9Mn0.1Ti3.9Mn0.1O12 (CCMTMO) ceramic. The novelty of Mn-doped CCTO ceramic is that the tangent loss also decreases largely as compared to CCTO ceramic. The dielectric constant and tangent loss of CCMTMO ceramic 375 and 0.3 at 10 Hz temperature, respectively. CCMTMO ceramic is very useful for microelectronic devices. The polycrystalline nature of CCMTMO was to be studied with the help of X-ray diffraction (XRD), HR-SEM, HR-TEM, and Magnetic Property Measurement System (MPMS, Quantum Design). The elemental analysis and oxidation state was confirmed by (Energy Diffraction X-ray) EDX and XPS respectively. The elements were found to be their required stoichiometric and oxidation state. The impedance and modulus spectroscopy also studied. |
| first_indexed | 2024-12-14T00:43:54Z |
| format | Article |
| id | doaj.art-4ce893d462a644c59f4e9b3c7e74a012 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-14T00:43:54Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-4ce893d462a644c59f4e9b3c7e74a0122022-12-21T23:24:14ZengElsevierJournal of Materials Research and Technology2238-78542020-11-01961293612945Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet routeVinod Kumar0Santosh Pandey1Atendra Kumar2Manish Kumar Verma3Shruti Singh4Vishnu Shankar Rai5Dinesh Prajapati6Tapas Das7Ankur Sharma8Champa Lal Prajapat9Asnit Gangwar10K.D. Mandal11Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Chemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. IndiaDepartment of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, 400076, IndiaTechnical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, IndiaDepartment of Metallurgical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, IndiaDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, U.P. India; Corresponding author.This communication reports a detail study on manganese (Mn) doping in CaCu3Ti4O12 (CCTO) ceramic (simultaneously doping copper and titanium site) with the help of X-ray Photoelectron Spectroscopy ( XPS), High Resolution - Scanning Electron Microscopy ( HR-SEM), High Resolution- Transmission Electron Microscopy (HR-TEM ) and Raman spectra. The doping of manganese in CCTO ceramic, the dielectric constant was largely decreased due to Mn exist variable oxidation state like Mn+2, Mn+3and Mn+4 due to this reason the grains (GB) and grain boundaries (GBs) slightly behave conducting nature. Raman spectra show the existence of copper oxide and manganese oxide presence in the grain and grain boundary of CaCu2.9Mn0.1Ti3.9Mn0.1O12 (CCMTMO) ceramic. The novelty of Mn-doped CCTO ceramic is that the tangent loss also decreases largely as compared to CCTO ceramic. The dielectric constant and tangent loss of CCMTMO ceramic 375 and 0.3 at 10 Hz temperature, respectively. CCMTMO ceramic is very useful for microelectronic devices. The polycrystalline nature of CCMTMO was to be studied with the help of X-ray diffraction (XRD), HR-SEM, HR-TEM, and Magnetic Property Measurement System (MPMS, Quantum Design). The elemental analysis and oxidation state was confirmed by (Energy Diffraction X-ray) EDX and XPS respectively. The elements were found to be their required stoichiometric and oxidation state. The impedance and modulus spectroscopy also studied.http://www.sciencedirect.com/science/article/pii/S2238785420317567Dielectric propertiesMagnetic propertiesImpedance spectroscopic studiesMicrostructural studySemi–wet route |
| spellingShingle | Vinod Kumar Santosh Pandey Atendra Kumar Manish Kumar Verma Shruti Singh Vishnu Shankar Rai Dinesh Prajapati Tapas Das Ankur Sharma Champa Lal Prajapat Asnit Gangwar K.D. Mandal Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route Journal of Materials Research and Technology Dielectric properties Magnetic properties Impedance spectroscopic studies Microstructural study Semi–wet route |
| title | Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route |
| title_full | Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route |
| title_fullStr | Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route |
| title_full_unstemmed | Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route |
| title_short | Investigation of dielectric, magnetic and impedance spectroscopic properties of CaCu3-XMnXTi4-XMnXO12 (X = 0.10) nano-ceramic synthesized through semi-wet route |
| title_sort | investigation of dielectric magnetic and impedance spectroscopic properties of cacu3 xmnxti4 xmnxo12 x 0 10 nano ceramic synthesized through semi wet route |
| topic | Dielectric properties Magnetic properties Impedance spectroscopic studies Microstructural study Semi–wet route |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420317567 |
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