Structure determination of theCoSi2:Si(111) interface by x-ray standing-wave analysis

Abstract
The atomic structure at the interface of CoSi2 films on Si(111) has been investigated with x-ray standing waves. The Co atoms at the interface are five-fold-coordinated. The bonds across the interface are dilated by 0.05±0.03 Å. For the range of film thicknesses studied (928 Å), the CoSi2 lattice was measured to be almost free of strain in the direction perpendicular to the interface plane.