Crystal direction dependence of interfacial mixing in Nb-Ta superlattices

Publisher Website
Google Scholar
Abstract
X-ray diffraction data on four single-crystal Nb-Ta superlattices with 50 AA wavelength are presented which show that the interfacial mixing is a function of the crystal growth direction. Standard diffusion mechanisms appear inadequate to describe this mixing. Defect configurations of the growing crystal surface are suggested as a possible cause of the anisotropy.