Abstract:
The fine structure of cubic compounds Zn$_{0.9}$Ni$_{0.1}$S è Zn$_{0.7}$Ni$_{0.3}$Î has been discussed. At room temperature, their diffraction patterns contain, along with intense Bragg reflections of the face-centered cubic phase, superstructure diffuse maxima demonstrating the ordering of short-wavelength deformations due to Jahn–Teller nickel ions.