THE CORE ENERGY OF DISLOCATIONS

The main part of the line energy of dislocations in solids can be desc ribed by elastic continuum theory (linear, nonlinear and nonlocal), Th ere remains, however, a core part which must be treated atomistically. Based on dimensional arguments it is shown that independent of the in teratomic potential and independent of the core configuration there ex ists a unique correlation between the elastic energy and the atomic mi sfit energy. This results from the fact that the displacements are cou pled to the asymptotic field of a singular dislocation.