POWDER X-RAY AND NEUTRON-DIFFRACTION STUDIES OF THE (BA1-XSRX)(2)(SR0.67BI0.33)(PB1-YBIY)O-6-DELTA COMPOUNDS WITH THE (NH4)(3)FEF6 STRUCTURE TYPE

Authors
EYLEM C EICHHORN BW HUANG Q CLINTON T
Citation
C. Eylem et al., POWDER X-RAY AND NEUTRON-DIFFRACTION STUDIES OF THE (BA1-XSRX)(2)(SR0.67BI0.33)(PB1-YBIY)O-6-DELTA COMPOUNDS WITH THE (NH4)(3)FEF6 STRUCTURE TYPE, Journal of solid state chemistry, 115(1), 1995, pp. 197-203
Citations number
25
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
115
Issue
1
Year of publication
1995
Pages
197 - 203
Database
ISI
SICI code
0022-4596(1995)115:1<197:PXANSO>2.0.ZU;2-S
Abstract
A new series of compounds of composition (Ba1-xSrx)(2)(Sr0.67Bi0.33)(P b1-yBiy)O-6-delta has been prepared and characterized by powder X-ray and neutron diffraction studies. The phases adopt the cubic (NH4)(3)Fe F6 type structure (space group Fm3m) with Sr2+ ions occupying the B si tes. TGA and neutron refinements show oxygen vacancies and a large ani sotropy associated with the O atoms. The anisotropy is discussed in te rms of a vacancy model. (C) 1995 Academic Press, Inc.