Аннотация:A new compound SmFe0.5Ta1.5O6 has been synthesized and its structure has been calculated from synchrotron powder diffraction data by the Rietveld method. It has been demonstrated that SmFe0.5Ta1.5O6 has an aeschynite structure (space group Pnma). A study of its magnetic properties has shown that the SmFe0.5Ta1.5O6 compound is paramagnetic.