Structure of compounds in the Sr1-3x/2CexTiO3 homologous series

Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/2097

Title:	Structure of compounds in the Sr1-3x/2CexTiO3 homologous series
Authors:	Ubic, R Subodh, G Sebastian, M T Gout, D Proffen, T
Keywords:	Microwave Dielectric-Properties Neutron powder diffraction Complex perovskites Temperature-coefficient Relative permittivity Manganites Phase-transition Ceramics
Issue Date:	2008
Publisher:	American Chemical Society
Citation:	Chemistry of Materials 20(9):3127-3133;13 May 2008
Abstract:	Four compositions in the Sr1 - 3x/2CexTiO3 homologous series, corresponding to x = 0.1333, 0.1667, 0.25, and 0.4, have been produced by conventional solid-state processing. The structure of these compounds was analyzed by X-ray, electron, and neutron diffraction. While no superlattice can be observed via X-ray diffraction, both electron and neutron diffraction show evidence of a noncubic supercell caused by antiphase tilting of oxygen octahedra. The most likely space group is R (3) over barc, corresponding to an a(-)a(-)a(-) system, except for the composition x = 0.4, for which an even more complex superstructure is observed. The degree of tilt increases with increasing x.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/2097
ISSN:	0897-4756
Appears in Collections:	2008

Files in This Item:

File	Description	Size	Format
2008_0143.PDF Restricted Access		1.01 MB	Adobe PDF	View/Open Request a copy

DSpace JSPUI