Search: onr:"swepub:oai:DiVA.org:uu-148602" >
X-ray diffraction a...
X-ray diffraction and Raman spectroscopy studies of BaSrMWO6 (M=Ni, Co, Mg) double perovskite oxides
-
Ezzahi, A. (author)
-
Manoun, Bouchaib (author)
-
Ider, A. (author)
-
show more...
-
Bih, L. (author)
-
Benmokhtar, S. (author)
-
Azrour, M. (author)
-
Azdouz, M. (author)
-
Igartua, J. M. (author)
-
- Lazor, Peter (author)
- Uppsala universitet,Berggrundsgeologi
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- English.
-
In: Journal of Molecular Structure. - : Elsevier BV. - 0022-2860 .- 1872-8014. ; 985:2-3, s. 339-345
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- In this work we report on the crystal structure and Raman spectroscopy of BaSrMWO6 (M=Ni, Co, Mg) double perovskite oxides. The results showed that the Ni, Co and Mg containing compounds crystallize in a cubic system with the space group Fm-3 in. The double perovskite structure can be represented as a three-dimensional network of alternating MO6 and WO6 octahedra, with Ba- and Sr-atoms occupying the interstitial spaces. The Raman spectra of this crystalline perovskite oxides are interpreted by means of factor group analysis in terms of space group Fm-3 m. Assignments of the W-O vibrational stretching and bending modes have been made. High temperature Raman spectroscopy of BaSrNiWO6 showed that all lattice modes illustrate a linear decrease in wavenumbers while temperature is increased. No discontinuities, in the temperature changes, in wavenumber observed for all modes recorded: indicating that the structure remains cubic and stable up the highest temperature studied here.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- Double perovskites
- X-ray diffraction
- Rietveld method
- BaSrMWO6
- Earth sciences
- Geovetenskap
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database