Аннотация:The analysis of spin-echo spectra of V, Mn, Co, Ru, Rh, Os, and Ir in ${\mathrm{Fe}}_{3}$Si shows that these impurities unexpectedly enter one of the two available Fe sites in a selective manner. Those impurities to the left of Fe in the periodic table prefer the Fe site with eight first-neighbor Fe atoms. Those beneath and to the right of Fe in the periodic table enter the Fe site with four Fe and four Si first neighbors.
