“…Indeed, the total exchange like interaction, J, depends on the nn distance between the SCO sites, and therefore at fixed temperature, T , its average value, < J >= J 0 − α < d > −R HH eq is clearly temperaturedependent. This makes the study of the magnetic subsystem more complex than thought, and in the same time this fact makes the problem extremely close to the previous BEG studies [47,[78][79][80] in which all interacting parameters, including magnetic exchange, were assumed to be linearly depend on temperature.…”