Interaction Between Localized Defects in an Isotropic Elastic Medium

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Abstract
The long‐range interaction between localized defects in an infinite elastically isotropic solid is derived. It is shown that when the defect has cubic symmetry the interaction energy is proportional to the inverse fifth power of the separation, in agreement with the result previously obtained from discrete lattice theory. The difference in magnitude of the interaction derived by the two methods is attributed to phonon dispersion.