| A new multicomponent vanadate Mg3Fe4V6O24 containing non-magnetic magnesium(II) ions has been synthesized by the solid state reaction method using stoichiometric mixture of FeVO4 and Mg3(VO4)2 oxides. The neutron diffraction measurements have been done at 10K and 290K and the crystal structure has been analyzed to study a possible cation disorder as well as expected magnetic ordering phenomena. The distance between two neighbouring Fe(1) ions in Mg3Fe4V6O24 is significantly smaller in comparison to isostructural Zn3Fe4V6O24 , whereas the distance between neighbouring Fe(2) ions is similar to what has been observed in Zn3Fe4V6O24 compound. The neutron diffraction study of the Mg3Fe4V6O24 powder has indicated that the iron(III) and magnesium(II) ions are not disordered in the investigated structure and there is no magnetic ordering down to the temperature of 10K. |
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