Local order and mean vibrational state of atoms in substitutional metallic solid solutions

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Abstract
The effective mean-square amplitude of thermal vibrations of atoms in the usual Debye-Waller temperature factor has been calculated using the nearest neighbour interaction model for the binary substitutional f. c. c. metallic solid solutions. It is given in terms of the short-range order parameter α of the first coordination shell and the nearest neighbour force constants gAA, gBB and gAB. The structure and dynamical parameters α and gAB of the metallic solid solutions can be estimated from the X-ray measurement of the integrated intensities provided we know gAA and gBB from similar measurements on pure metals A and B