Cubic symmetry around iron in CoSi2 |
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Authors: | E. Bill I. Dézsi Cs. Fetzer |
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Affiliation: | (1) Max‐Planck‐Institut für Strahlenchemie, D‐45470 Mülheim, Germany;(2) MTA‐KFKI Research Institute for Particle and Nuclear Physics, Pf. 49 H‐1525 Budapest 114, Hungary |
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Abstract: | The Mössbauer spectra of 57Fe in CoSi2 have been measured in 3.5 and 4.0 T external magnetic fields. The measured spectra showed only magnetic splitting thereby proving the cubic symmetry around 57Fe atoms in CoSi2 (fluorite‐type lattice). Two iron positions were found: in one the iron atoms substitute Co atoms, in the other one the iron populates the empty cubic site in the lattice. It is considered that the results may well contribute to clarifying the atomic positions and local symmetries in metastable Co‐ and Fe‐silicides forming after implantation of Co and Fe in Si at elevated temperatures. |
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