6533b7d8fe1ef96bd126a241
RESEARCH PRODUCT
LEAD-FREE (Na0.5Bi0.5)1-xBaxTiO3 SINGLE CRYSTALS (0 ≤ x ≤ 0.05) AND THEIR DIELECTRIC AND PYROELECTRIC PROPERTIES
Irena Jankowska-sumaraDariusz WcisłoB. GlosA. FinderG. StopaMaruta DambekalneW. HofmeisterJoachim KuszMaciej ZubkoKrzysztof PytelAndris SternbergJan SuchaniczT. V. KruzinaRoman RosiekK. Koniecznysubject
Phase transitionMaterials scienceIonic radiusAnalytical chemistryDielectricLow frequencyCondensed Matter PhysicsFerroelectricityElectronic Optical and Magnetic MaterialsIonPyroelectricityCrystallographyControl and Systems EngineeringMaterials ChemistryCeramics and CompositesElectrical and Electronic EngineeringPyroelectric crystaldescription
ABSTRACT Lead-free single crystals of Na0.5Bi0.5TiO3-BaTiO3 (NBT-BT) system were prepared by Czochralski method and their dielectric and pyroelectric properties have been studied. The results were compared with these for pure NBT. The obtained samples show pure perovskite structure with rhombohedral symmetry at room temperature. Low frequency (100 Hz–100 kHz) investigations reveal the diffuse phase transitions. The obtained results are discussed in terms of local electric and strain fields caused by different ionic radius of (Na, Bi) and Ba ions. The NBT-BT system is expected to be a new promising candidate for lead-free electronic crystals.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-10-22 | Integrated Ferroelectrics |