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Lanthanum distribution in SrBi4−x La x Ti4O15
- Source :
-
Materials Letters . May2005, Vol. 59 Issue 12, p1581-1584. 4p. - Publication Year :
- 2005
-
Abstract
- Abstract: The Raman spectra for SrBi4−x La x Ti4O15 (x=0.00–1.00) ceramic samples are investigated to explore the influence of doping on the structure of SrBi4Ti4O15. Lanthanum-doping results in the shifts of the Raman modes involved in the vibration of the cations at A site of the pseudo-pervoskite slabs, Bi3+ ions in the Bi2O2 layers, and the stretching mode of TiO6 octahedra. The shifts of these modes indicate that La3+ ions prefer the A site of SrBi4Ti4O15 as x≤0.10, and as x>0.10, they are incorporated into Bi2O2 layers. [Copyright &y& Elsevier]
- Subjects :
- *LANTHANUM
*PEROVSKITE
*FERROELECTRIC crystals
*RAMAN effect
Subjects
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 59
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 17621410
- Full Text :
- https://doi.org/10.1016/j.matlet.2005.01.027