X-ray structure of barium titanate - missed opportunities

Citation
Ks. Chandrasekaran et al., X-ray structure of barium titanate - missed opportunities, ACT CRYST B, 56, 2000, pp. 918-919
Citations number
10
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE
ISSN journal
01087681 → ACNP
Volume
56
Year of publication
2000
Part
5
Pages
918 - 919
Database
ISI
SICI code
0108-7681(200010)56:<918:XSOBT->2.0.ZU;2-R
Abstract
Anomalous X-ray scattering effects are quite extensive in the noncentrosymm etric ferroelectric structure of barium titanate, and typical estimates for three published X-ray diffraction experiments are computed. These data sho w that the Bijvoet pairs should not be averaged before least-squares refine ment for this polar crystal with small atomic displacements from a higher s ymmetric space group.