Determination of the probability of existence of pair interactions in the formation of $M_{2t}X_{2t-1}$ superstructures in $MX_y$ nonstoichiometric compounds
Abstract:
An analytical method has been proposed for calculating the probabilities $P_i^{(2)(s)}$ of existence of $X$–$X$, $X$–$\square$, and
$\square$–$\square$ pair interactions in the nonmetal sublattice of $M_{2t}X_{2t-1}$ superstructures formed in strongly nonstoichiometric compounds $MX_y$$(MX_y\square_{1-y})$ and $M_2X_{y'}$$(MX_{y'/2}\square_{1-y'/2})$ with a high content of structural vacancies
$\square$. The main characteristics necessary for the quantitative determination of the probabilities $P^{(2)(s)}_i$ as functions of the composition, degree of long-range order, symmetry, and structure type have been determined for all the known superstructures $M_{2t}X_{2t-1}$.
