CRYSTAL AND ELECTRONIC-STRUCTURES OF (BA, SR)TIO3

Authors
LIU RS CHENG YC CHEN JM LIU RG WANG JL TSAI JC HSU MY
Citation
Rs. Liu et al., CRYSTAL AND ELECTRONIC-STRUCTURES OF (BA, SR)TIO3, Materials letters, 37(4-5), 1998, pp. 285-289
Citations number
11
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
37
Issue
4-5
Year of publication
1998
Pages
285 - 289
Database
ISI
SICI code
0167-577X(1998)37:4-5<285:CAEO(S>2.0.ZU;2-4
Abstract
The (Ba0.67Sr0.33)TiO3 phase, synthesized by the sol-gel method at 130 0 degrees C, is tetragonal (space group: P4 mmm) with a unit cell of a (or b) = 3.9724(5) Angstrom and c = 3.9703(9) Angstrom. Based on the refinement data from X-ray powder diffraction of the sample, the cryst al structure shows a distortion of the TiO6 octahedron and a buckling within the TiO2 planes which lead to the material with polarizability. Moreover, the electronic structure of (Ba0.67Sr0.33)TiO3 is investiga ted by the Ti L-23-edge X-ray absorption near edge structure (XANES) s pectra. (C) 1998 Elsevier Science B.V. AU rights reserved.