Displacement around a Dissolved Impurity Atom in a Metal: Sn in Cu

Abstract
It has been determined that the nearest-neighbor distance around tin atoms dissolved in a Cu lattice is 2.63 Å, ∼0.07 Å larger than given by the average lattice constant. The determination was made by the extended x-ray-absorption fine-structure technique. The observed distortion agrees with that calculated from an anisotropic lattice model.