On the calculation of the interaction energy between two defects in metals

Impurity diffusion and vacancy–impurity binding energy associated with elements of the second transition series in niobium and molybdenum

“…This last author based his calculation on an extension of the model of Natta and Toulouse (1967) for substutional d impurities in transition metals. More recently, Gautier et al (1976) generalized the model of Natta and Toulouse (1967) by introducing the t-matrix formalism : the binding energy found for transition impurities in copper, in other elements of the first transition series, and in aluminium a.re in good agreement with available data. This model has been applied recently to the calculation of the electronic binding energy between carbon atoms in a-iron (Demangeat, Gautier and Parlebas 1978) and between sp impurities and d impurities in b.c.c.…”