On the preferential site occupation of Fe in RFe<sub>4</sub>Al<sub>8</sub> and related compounds
O Moze; R M Ibberson; K H J Buschow; O Moze; Inst. MASPEC, Parma, Italy; R M Ibberson; Inst. MASPEC, Parma, Italy; K H J Buschow; Inst. MASPEC, Parma, Italy
Журнал:
Journal of Physics: Condensed Matter
Дата:
1990-02-19
Аннотация:
High-resolution neutron powder diffraction studies were performed on several compounds of the type YFe<sub>12-x</sub>Al<sub>x</sub> (x=8, 7, 6). The authors observed a strong preferential site occupation of Fe on one of the three non-equivalent transition metal sites of the hMn<sub>12</sub>-type structure. In particular the 8f site is found to be markedly populated by Fe atoms, while there is a strong preference of Al for the 8i site.
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