6533b7d8fe1ef96bd126a242

RESEARCH PRODUCT

DIELECTRIC AGEING IN LAYERED FERROELECTRICS

Anna KalvaneMaruta DambekalneYu. V. KocherginA. I. BurkhanovK. Bormanis

subject

Phase transitionMaterials scienceCondensed matter physicsSAMPLE historyDielectricCondensed Matter PhysicsPolarization (waves)Electronic Optical and Magnetic MaterialsExponential functionDielectric spectroscopyControl and Systems Engineeringvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic Engineering

description

ABSTRACT Studies of the effects of sample history on long-term relaxation of polarization in the Na0.5Bi8.5Ti2Nb4O27 and Na0.5Bi8.5Ti2Ta4O27 ferroelectrics of layered structures are reported. The type of functional relationship of e′(t) at measuring procedures including heating or cooling to the temperature being examined Ta is found to change from exponential (Kohlrausch function) to logarithmic. Results are discussed within the assumption of presence of defect complexes in disordered ferroelectrics.

yearjournalcountryeditionlanguage
2008-12-09Integrated Ferroelectrics
https://doi.org/10.1080/10584580802558167