POSITRON LIFETIME STUDY OF THE FERROELECTRIC BATIO3 IN ELECTRIC-FIELD

Authors
SUVEGH K DOMJAN A TARSOLY R VERTES A
Citation
K. Suvegh et al., POSITRON LIFETIME STUDY OF THE FERROELECTRIC BATIO3 IN ELECTRIC-FIELD, Journal of radioanalytical and nuclear chemistry, 211(1), 1996, pp. 255-260
Citations number
9
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
211
Issue
1
Year of publication
1996
Pages
255 - 260
Database
ISI
SICI code
0236-5731(1996)211:1<255:PLSOTF>2.0.ZU;2-F
Abstract
BaTiO3, was studied by positron lifetime spectroscopy in static electr ic field. The strength of the field was varied from 0 up to 10(4) V/cm . Two characteristic points were found at 4500 V/cm and at 8500 V/cm. These field strengths were related to subsequent ordering precesses of the crystal. Additional temperature dependent measurements were perfo rmed in the 70-310 K range to confirm the interpretation of the two po sitron lifetimes. The two expected phase transitions were observed and these measurements showed that positrons are trapped by Ha vacancies.