Abstract
The x-ray and neutron diffraction in structural-glass phases of crystalline solid solutions is considered in the framework of the quasidomain model of the atomic structure of glass phases. The model presumes that the solid solutions in such phases consist of a number of macroscopic quasidomains with nearly homogeneous random deformations. The general expressions for the intensities and widths of quasi-Bragg scattering for various types of diffraction experiments are obtained for the continuous glass transitions in terms of the matrix of mean-square random deformations ${S}_{\mathrm{mn}}$ and average sizes of quasidomains. The relation of the ${S}_{\mathrm{mn}}$ form to the symmetry of the crystal in the high-temperature phase and the type of glass transition is established. The general results are illustrated on examples of diffraction in glass phases of cubic and hexagonal crystals.
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