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The previously proposed model postulating that the incommensurately modulated KNd(MoO$_4$)$_2$ structure can act as a generator of the scheelite family members is validated here by refining the crystal structure of europium molybdate, Eu$_2$(MoO$_4$)$_3$. The initial structural model was derived from the superspace characteristics of KNd(MoO$_4$)$_2$ and the predicted parameters used in the simulation of Eu$_2$(WO$_4$)$_3$. The refinement was performed using both superspace and traditional supercell approaches in superspace group $I2/b(\alpha\beta 0)00 and space group A2/a, respectively. The results obtained by both approaches are in excellent agreement and coincide with those reported in the literature.