6533b825fe1ef96bd1281c98
RESEARCH PRODUCT
Influence of Lithium Substitution on Structure, Electric and Pyroelectric Properties of Sodium Niobate Ceramics
Barbara Garbarz-glosM. LivinshIlze SmeltereW. ŚMigasubject
DiffractionMaterials scienceAnalytical chemistrychemistry.chemical_elementCondensed Matter PhysicsThermal conductionMicrostructurePolaronElectronic Optical and Magnetic MaterialsPyroelectricitychemistryvisual_artElectric fieldvisual_art.visual_art_mediumLithiumCeramicdescription
Li0.02Na0.98NbO3 ceramics were prepared by a conventional method. A single-phase perovskite structure was identified by an X-ray diffraction method. The SEM and EDS studies revealed that the Li0.02Na0.98NbO3 samples were perfectly sintered and chemically homogeneous. Electric measurements showed that Li0.02Na0.98NbO3 was sensitive to the frequency of the applied electric field and revealed that the ac conductivity changed with frequency according to the formula: σ(ω) = σdc +Aωn where n < 1. These results were discussed with a reference to the conduction mechanism as a type of polaron hopping.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 | Ferroelectrics |