RAMAN-STUDY OF PHASE-TRANSITION IN FERROELECTRIC BA0.95CA0.05TIO3

Authors
RAO R ROY AP DASANNACHARYA BA BALAKUMAR S ILANGOVAN R RAMASAMY P
Citation
R. Rao et al., RAMAN-STUDY OF PHASE-TRANSITION IN FERROELECTRIC BA0.95CA0.05TIO3, Pramana, 47(2), 1996, pp. 145-150
Citations number
11
Categorie Soggetti
Physics
Journal title
Pramana → ACNP
ISSN journal
03044289
Volume
47
Issue
2
Year of publication
1996
Pages
145 - 150
Database
ISI
SICI code
0304-4289(1996)47:2<145:ROPIFB>2.0.ZU;2-A
Abstract
Raman scattering investigation of phase transition in the ferroelectri c Ba0.95Ca0.05TiO3 is reported. The results suggest onset of significa nt dynamic disorder at 105 degrees C. This corroborates findings of re cent structural study regarding large positional disorder associated w ith Ti and O1 atoms well below the tetragonal to cubic transition temp erature (similar to 150 degrees C).