X-ray diffraction, dielectric measurements and Raman spectroscopy Studies of the (1 -x)CaSnO3-x NaNbO3 solid solution

Compounds in the pseudo-binary CaSnO3/NaNbO3 system have been synthesized at 1350 °C in oxygen air. This sample was characterized by X-ray diffraction as well as dielectric measurements and Raman spectroscopy. Using the Rietveld refinement powder X-ray diffraction the crystal structure of CaSnO3/NaN...

Full description

Saved in:
Bibliographic Details
Published in:Journal of alloys and compounds 2008-10, Vol.465 (1-2), p.222-226
Main Authors: AYDI, Abdelhedi, CHKOUNDALI, Souad, KHEMAKHEM, Hamadi, SIMON, Annie, VON DER MÜHLL, Régnault
Format: Article
Language:English
Subjects:
Chemical Sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Ferroelectricity and antiferroelectricity
Material chemistry
Permittivity (dielectric function)
Phase transitions and curie point
Physics
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Compounds in the pseudo-binary CaSnO3/NaNbO3 system have been synthesized at 1350 °C in oxygen air. This sample was characterized by X-ray diffraction as well as dielectric measurements and Raman spectroscopy. Using the Rietveld refinement powder X-ray diffraction the crystal structure of CaSnO3/NaNbO3 was found at room temperature. These compounds crystallize at room temperature in tetragonal space group P4mm for x = 0.925 and in cubic group Pm3m for x = 0.895. The evolution of the Raman spectra was studied as a function of various compositions at room temperature.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2007.10.108