It was recalled that various forms for the interactions between dislocations were given in the literature which, although arising from the same basic expression, differed with respect to terms that vanished upon integrating over an entire dislocation loop. They thus yielded the same value for the interaction energy between distinct dislocations. It was shown here however that, when applied to dislocation self-energies (which, because of a core cut-off, did not involve integrations over the entire loop), these expressions might not yield equivalent results.

Ambiguities in the Calculation of Dislocation Self Energies. R.LeSar: Physica Status Solidi B, 2004, 241[13], 2875-80