Title of article
Low-temperature synthesis and structural properties of ferroelectric K3WO3F3 elpasolite
Author/Authors
Atuchin، نويسنده , , V.V. and Gavrilova، نويسنده , , T.A. and Kesler، نويسنده , , V.G. and Molokeev، نويسنده , , M.S. and Aleksandrov، نويسنده , , K.S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
4
From page
83
To page
86
Abstract
Low-temperature ferroelectric G2 polymorph of K3WO3F3 has been prepared by chemical synthesis. Structural and chemical properties of the final product have been evaluated with X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Structure parameters of G2–K3WO3F3 are refined by the Rietveld method from XRD data measured at room temperature (space group Cm, Z = 2, a = 8.7350(3) Å, b = 8.6808(5) Å, c = 6.1581(3) Å, β = 135.124(3) Å, V = 329.46(3) Å3; RB = 2.47%). Partial ordering of oxygen and fluorine atoms has been found over anion positions. Mechanism of ferroelectric phase transition in A2BMO3F3 oxyfluorides is discussed.
Journal title
Chemical Physics Letters
Serial Year
2010
Journal title
Chemical Physics Letters
Record number
1929265
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