Structural and dielectric properties of Nd/Ca co-doped bi-ferrite multiferroics

Structural and dielectric properties of Nd/Ca co-doped bi-ferrite multiferroics

Single-phase polycrystalline samples of Bi0.8Nd0.2−xCaxFeO3 (x = 0.0, 0.1) were synthesized by chemical coprecipitation method. X-ray diffraction patterns accompanied by Rietveld-refined crystal structure parameters reveal the phase transition of Bi0.8Nd0.1Ca0.1FeO3 with rhombohedral R3c symmetry to...

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Bibliographische Detailangaben
Hauptverfasser: Kumar, Ashwini, Sharma Poorva, Varshney Dinesh
Format: Tagungsbericht
Sprache:eng
Schlagworte:
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
Chemical synthesis
COMPARATIVE EVALUATIONS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPRECIPITATION
Crystal structure
Crystals
Dependence
Dielectric loss
DIELECTRIC MATERIALS
Dielectric properties
Diffraction patterns
DOPED MATERIALS
ENERGY GAP
FERRITES
FREQUENCY DEPENDENCE
NEODYMIUM COMPOUNDS
Organic chemistry
PERMITTIVITY
PHASE TRANSFORMATIONS
Phase transitions
POLYCRYSTALS
RELAXATION LOSSES
TRIGONAL LATTICES
X-RAY DIFFRACTION
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Beschreibung
Zusammenfassung:Single-phase polycrystalline samples of Bi0.8Nd0.2−xCaxFeO3 (x = 0.0, 0.1) were synthesized by chemical coprecipitation method. X-ray diffraction patterns accompanied by Rietveld-refined crystal structure parameters reveal the phase transition of Bi0.8Nd0.1Ca0.1FeO3 with rhombohedral R3c symmetry to triclinic structure of Bi0.8Nd0.2FeO3 sample. Frequency dependence of dielectric constant (ε') and dielectric loss (tanδ), infers enhancement of both ε' (tanδ) in narrow band gap of Nd/Ca co-doped BFO as compare to wide band pristine BFO.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4872481