Dielectric spectra of sodium niobate-based binary systems

Authors
Pozdnyakova, IV Reznichenko, LA
Citation
Iv. Pozdnyakova et La. Reznichenko, Dielectric spectra of sodium niobate-based binary systems, TECH PHYS L, 26(11), 2000, pp. 980-981
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS LETTERS
ISSN journal
10637850 → ACNP
Volume
26
Issue
11
Year of publication
2000
Pages
980 - 981
Database
ISI
SICI code
1063-7850(200011)26:11<980:DSOSNB>2.0.ZU;2-A
Abstract
Dielectric properties of the Na1-xLixNbO3Na1-xKxNbO3, and Na1-xPbxNb1-xTixO 3 systems have been studied in the Frequency range from 120 Hz to 20 kHz. A considerable dispersion of the dielectric constant in the antiferroelectri c solid solutions is established, which indicates the possible formation of ferroelectric clusters in the antiferroelectric matrix. When the probing f ield frequency decreases in the range of low x values, the temperature curv es of the dielectric constant acquire some relaxation extrema. It is sugges ted that the observed effects are caused by oxygen vacancies. (C) 2000 MAIK "Nauka/Interperiodica".