Title of article
Structure of KNb0.5V0.5OPO4, a KTiOPO4 Analog
Author/Authors
Rangan، نويسنده , , K.K and Verbaere، نويسنده , , A and Gopalakrishnan، نويسنده , , J، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
5
From page
395
To page
399
Abstract
The crystal structure of KNb0.5V0.5OPO4, a new KTiOPO4 isomorph, has been refined from powder X-ray diffraction data by Rietveld refinement. The structure is orthorhombic, space group Pna21, with a = 12.933(1), b = 6.4713(8), and c = 10.7273(6) إ, Z = 8. There is a preferential distribution of Nb(V) and V(III) atoms in the octahedral M(1) [0.806Nb, 0.194V] and M(2) [0.194Nb, 0.806V] sites, the M(1)O6 octahedra being more distorted than the M(2)O6 octahedra. The results are compared with other KTiOPO4 derivatives.
Keywords
A. Optical materials , C. X-ray diffraction , D. Crystal structure
Journal title
Materials Research Bulletin
Serial Year
1998
Journal title
Materials Research Bulletin
Record number
2093898
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