Title of article
Crystal structure, thermal and magnetic properties of Cr2V4O13
Author/Authors
S.J. Patwe، نويسنده , , S.N. Achary، نويسنده , , J. Manjanna، نويسنده , , R.M. Kadam، نويسنده , , H.G. Salunke، نويسنده , , AK Tyagi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
9
From page
2770
To page
2778
Abstract
Cr2V4O13, a tetravanadate of Cr3+ has been prepared by repeated heating of stoichiometric amounts of Cr2O3 and V2O5 and its crystal structure is refined by Rietveld refinement of the powder XRD data. This compound crystallizes in a monoclinic lattice with unit cell parameters: a=8.2651(3), b=9.2997(3), c=14.5215(5) Å, β=102.618(3)°, V=1089.21(6) Å3 and Z=4 (Space group: P21/c). The U shaped (V4O13)6− formed by corner connected VO4 tetrahedra links the Cr2O10 (dimers of two edge shared CrO6 octahedra) forming a three dimensional network structure of Cr2V4O13. This compound is stable up to 635 °C and peritectically decomposes to orthorhombic CrVO4 and V2O5 above this temperature. A possible long range antiferromagnetic ordering below 10 K is suggested from the squid magnetometry and electron paramagnetic resonance (epr) spectroscopic studies of Cr2V4O13.
Keywords
crystal structure , X-ray diffraction , electron paramagnetic resonance , Vanadate , Rietveld refinement , Magnetic properties
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
Serial Year
2010
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
Record number
1334677
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