Crystal structure of the Ba4CeNb10O30 reduced niobate with a TTB-type structure

Authors
Mironov, AV Istomin, SY D'yachenko, OG Antipov, EV
Citation
Av. Mironov et al., Crystal structure of the Ba4CeNb10O30 reduced niobate with a TTB-type structure, J SOL ST CH, 157(1), 2001, pp. 1-7
Citations number
14
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
ISSN journal
00224596 → ACNP
Volume
157
Issue
1
Year of publication
2001
Pages
1 - 7
Database
ISI
SICI code
0022-4596(20010215)157:1<1:CSOTBR>2.0.ZU;2-5
Abstract
The structure of the cation-deficient Ba4.0(1)Ce0.98(3)Nb10O30 barium ceriu m reduced niobate with a tetragonal tungsten bronze (TTB) type structure wa s refined from X-ray single crystal data (tetragonal, a = 12.508(2) Angstro m, 3.9328(4) Angstrom, S. G. P4/mbm, Z = 1, R = 0.019, R-w = 0.023). It was found that rare earth substitution for Ba is accompanied by formation of v acancies in A sites. Vacancies were preferably formed in the A(1) cavities in the structure. (C) 2001 Academic Press.