Crystal and electronic structures of (Ba, Sr)TiO3
Journal
Materials Letters
Journal Volume
37
Journal Issue
4-5
Pages
285-289
Date Issued
1998
Author(s)
Abstract
The (Ba0.67Sr0.33)TiO3 phase, synthesized by the sol-gel method at 1300°C, is tetragonal (space group: P4 mmm) with a unit cell of a (or b) = 3.9724(5) Å and c = 3.9703(9) Å. Based on the refinement data from X-ray powder diffraction of the sample, the crystal 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 investigated by the Ti L23-edge X-ray absorption near edge structure (XANES) spectra. © 1998 Elsevier Science B.V. All rights reserved.
Type
journal article