Structural characterization of epitaxial α-derivedFeSi2on Si(111)

Abstract
The tetragonal symmetry of epitaxial FeSi2 grains on Si(111) has been revealed for thin films (<40 Å) issued from two very different processes, which had in common a growth temperature of about 500 °C. The structure has been investigated by out-of-plane x-ray diffraction and transmission electron microscopy. An atomic model is proposed derived from the high-temperature α phase.