High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids
Using conventional solid-state techniques, BaTiO3- Li0.5Fe2.5O4composites doped with Gd/Nb are prepared. Investigations are made on the electric and micro-structural characteristics of composites at high frequencies. The tetragonal structure without phase change is confirmed by the composites BTO, B...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Hybrid Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2773207X23000611 |
| _version_ | 1797740438662152192 |
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| author | Ganapathi Rao Gajula Lakshmi Rekha Buddiga B.B.V. Sailaja |
| author_facet | Ganapathi Rao Gajula Lakshmi Rekha Buddiga B.B.V. Sailaja |
| author_sort | Ganapathi Rao Gajula |
| collection | DOAJ |
| description | Using conventional solid-state techniques, BaTiO3- Li0.5Fe2.5O4composites doped with Gd/Nb are prepared. Investigations are made on the electric and micro-structural characteristics of composites at high frequencies. The tetragonal structure without phase change is confirmed by the composites BTO, BTOLF, BGN-1, and BGN-2. Using FESEM micrographs, the grain size of the composite samples BTO, BTOLF, BGN-1, and BGN-2 was determined. The Impedance (Z′), Complex Impedance (Z′′), and Mod of Impedance (|Z |) of all composites exhibit dispersion among the samples in the frequency range between 1 MHz and 1 GHz. The capacitance (C′) of BGN-2 falls between BTOLF and BGN-1 as a result of the effect of grain size.Due to the Gd/Nb doping in BTOLF, the true part of the composite's conductance (YS′) peak migrated towards lower and higher frequencies. All composites experience a rise in frequency beyond 1 GHz and a sharp peak in both the real component of the electric modulus (M') and the imaginary part of the electric modulus (M''). |
| first_indexed | 2024-03-12T14:12:27Z |
| format | Article |
| id | doaj.art-42dde5744c3c4bf5b3fb70aa0e6e5669 |
| institution | Directory Open Access Journal |
| issn | 2773-207X |
| language | English |
| last_indexed | 2024-03-12T14:12:27Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Hybrid Advances |
| spelling | doaj.art-42dde5744c3c4bf5b3fb70aa0e6e56692023-08-21T04:20:56ZengElsevierHybrid Advances2773-207X2023-08-013100078High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solidsGanapathi Rao Gajula0Lakshmi Rekha Buddiga1B.B.V. Sailaja2Department of CSE (Data Science), Institute of Aeronautical Engineering (Autonomous), Dundigal, Hyderabad, Telangana, 500043, India; Corresponding author.Department of Chemistry, Andhra University, Visakhapatnam, 530 003, AP, IndiaDepartment of Chemistry, Andhra University, Visakhapatnam, 530 003, AP, IndiaUsing conventional solid-state techniques, BaTiO3- Li0.5Fe2.5O4composites doped with Gd/Nb are prepared. Investigations are made on the electric and micro-structural characteristics of composites at high frequencies. The tetragonal structure without phase change is confirmed by the composites BTO, BTOLF, BGN-1, and BGN-2. Using FESEM micrographs, the grain size of the composite samples BTO, BTOLF, BGN-1, and BGN-2 was determined. The Impedance (Z′), Complex Impedance (Z′′), and Mod of Impedance (|Z |) of all composites exhibit dispersion among the samples in the frequency range between 1 MHz and 1 GHz. The capacitance (C′) of BGN-2 falls between BTOLF and BGN-1 as a result of the effect of grain size.Due to the Gd/Nb doping in BTOLF, the true part of the composite's conductance (YS′) peak migrated towards lower and higher frequencies. All composites experience a rise in frequency beyond 1 GHz and a sharp peak in both the real component of the electric modulus (M') and the imaginary part of the electric modulus (M'').http://www.sciencedirect.com/science/article/pii/S2773207X23000611BaTiO3FESEMImpedanceCapacitanceElectric modulusComposite |
| spellingShingle | Ganapathi Rao Gajula Lakshmi Rekha Buddiga B.B.V. Sailaja High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids Hybrid Advances BaTiO3 FESEM Impedance Capacitance Electric modulus Composite |
| title | High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids |
| title_full | High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids |
| title_fullStr | High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids |
| title_full_unstemmed | High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids |
| title_short | High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids |
| title_sort | high frequency electric modulus impedance and conductance studies of gadolinium niobium substituted barium titanate lithium ferrite solids |
| topic | BaTiO3 FESEM Impedance Capacitance Electric modulus Composite |
| url | http://www.sciencedirect.com/science/article/pii/S2773207X23000611 |
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