Вид документа : Статья из журнала Шифр издания : 54/S 12 Автор(ы) : Sadovnikov S. I., Rempel A. A. Заглавие : Short-Range Order and Pair Correlations in a Binary Solid Solution with a Square Lattice Место публикации : Physics of the Solid State. - 2007. - Vol. 49, № 8. - С. 1543-1547: il. Примечания : Bibliogr. : p. 1547 (14 ref.) ISSN: 1063-7834 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): твердые растворы--ближний порядок--дальний порядок--упорядоченные системы Аннотация: Using the example of a disordered AyB1 –y solid solution whose atoms are distributed over square-lattice sites, it is shown that correlations in the first coordination shell inevitably cause correlations in the second and more distant coordination shells. These induced correlations decay with distance extending to the ninth coordination shell in a square lattice. The induced correlations are calculated as a function of the correlation in the first coordination shell for binary solid solutions with various compositions. This dependence is described by a third-degree polynomial in the first-shell correlation to within the computational accuracy. The coefficients of the polynomial calculated in this paper using computer simulation can be useful in developing short-range order theory and in calculating the phase diagrams of binary solid solutions Доп.точки доступа: Rempel, A. A.; Ремпель Андрей Андреевич