Equilibrium positions of Au atoms in Sn crystals as determined by a channeling technique

Abstract
The lattice location of Au atoms diffused into Sn monocrystals has been studied under equilibrium conditions at 217°C by channeling and backscattering techniques using a 2.5-MeV Ne beam. The results show that the Au atoms dissolve almost entirely in substitutional positions, so that the unusually fast lattice diffusion of Au in Sn is most likely due to a very small fraction of Au atoms migrating interstitially.