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In the present study, iron-containing pyrochlores of the A 2 FeBO 7 type (where A=Y, Gd, Eu and Dy; B=Sb and Nb) were synthesized by solid-state reaction of precursor oxides. The compounds were structurally and magnetically characterized by X-ray diffraction, Mössbauer spectroscopy and magnetic measurements. The results revealed that the crystallographic structures and magnetic properties depend, basically, on the type of B atoms.

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