The cation distributions in the mixed-metal phosphate systems Fe7-xMx(PO4)6 [(1) M = Mn, x = 2; (2) M = Co, x = 3] have been studied by Rietveld analysis of powder neutron diffraction data. Both systems are synthesised hydrothermally, with subsequent low-temperature (500°C) annealing. They adopt the Fe7(PO4)6 structure type, which provides four crystallographically distinct metal sites, three of which are octahedral and one five-co-ordinated. Iron is found to be preferentially oxidised over the dopant cation in both cases, giving idealised compositions 'FeIIFe4IIIMn2II(PO 4)6' and 'Fe4IIICo3II(PO4) 6'. The cation sites are found to be strongly ordered, with Fe3+ preferentially occupying the two most distorted octahedral sites, rather than t...
A new mixed-valence iron phosphate Na1.25Mg1.10Fe1.90(PO4)3 has been synthesized as single crystals ...
The mixed cation diphosphates of composition MI FeIIIP2O7 have been prepared using the so called co-...
Time-of-flight neutron powder diffraction has been employed to determine precise occupancies of the ...
The cation distributions in the mixed-metal phosphate systems Fe7-xMx(PO4)6 [(1) M = Mn, x = 2; (2) ...
A sample of FePO4 has been characterized by powder X-ray and neutron diffraction techniques, Mössbau...
We have studied in detail the crystal and magnetic structures of the oxyphosphates MFePO5 (M: dival...
Iron phosphate (Fe2O3-P2O5) glasses with a high Fe2O3 content are particularly interesting in that t...
Na2Mn2(1 − x)Cd2xFe(PO4)3 (0 ≤ x ≤ 1) phosphates were prepared by solid state reaction and character...
Nine (Fe1-*Mn*)3(POa)2 solid solutions (0. l<xs0.9) with the graftonite-type structure have been ...
Neutron powder diffraction studies of the compounds FePO4 and LiFePO4 are reported. Rietveld refinem...
Ayant comme point de départ la vivianite nous avons synthétisé le monohydrate Fe2+3(PO4)2(H2O), sous...
Synthesis, single crystal X-ray diffraction, Mössbauer and magnetic studies of a new iron phosphate ...
Iron phosphate (Fe2O3-P2O5) glasses with a high Fe2O3 content are particularly interesting in that t...
The distribution of divalent iron and nickel over the two metal sites with differing coordination ge...
With a combination of magnetic susceptibility measurements and low-temperature neutron diffraction a...
A new mixed-valence iron phosphate Na1.25Mg1.10Fe1.90(PO4)3 has been synthesized as single crystals ...
The mixed cation diphosphates of composition MI FeIIIP2O7 have been prepared using the so called co-...
Time-of-flight neutron powder diffraction has been employed to determine precise occupancies of the ...
The cation distributions in the mixed-metal phosphate systems Fe7-xMx(PO4)6 [(1) M = Mn, x = 2; (2) ...
A sample of FePO4 has been characterized by powder X-ray and neutron diffraction techniques, Mössbau...
We have studied in detail the crystal and magnetic structures of the oxyphosphates MFePO5 (M: dival...
Iron phosphate (Fe2O3-P2O5) glasses with a high Fe2O3 content are particularly interesting in that t...
Na2Mn2(1 − x)Cd2xFe(PO4)3 (0 ≤ x ≤ 1) phosphates were prepared by solid state reaction and character...
Nine (Fe1-*Mn*)3(POa)2 solid solutions (0. l<xs0.9) with the graftonite-type structure have been ...
Neutron powder diffraction studies of the compounds FePO4 and LiFePO4 are reported. Rietveld refinem...
Ayant comme point de départ la vivianite nous avons synthétisé le monohydrate Fe2+3(PO4)2(H2O), sous...
Synthesis, single crystal X-ray diffraction, Mössbauer and magnetic studies of a new iron phosphate ...
Iron phosphate (Fe2O3-P2O5) glasses with a high Fe2O3 content are particularly interesting in that t...
The distribution of divalent iron and nickel over the two metal sites with differing coordination ge...
With a combination of magnetic susceptibility measurements and low-temperature neutron diffraction a...
A new mixed-valence iron phosphate Na1.25Mg1.10Fe1.90(PO4)3 has been synthesized as single crystals ...
The mixed cation diphosphates of composition MI FeIIIP2O7 have been prepared using the so called co-...
Time-of-flight neutron powder diffraction has been employed to determine precise occupancies of the ...