Elastic point defects
2018 Point defect in solids: Shear dominance of the far-field energy Jeppe C. Dyre
It is shown that the elastic energy far from a point defect in an isotropic solid is mainly shear
elastic energy. The calculation, which is based on a standard dipole expansion, shows that no matter how large or small the bulk modulus is compared to the shear modulus, less than 10% of the distant point defect energy is associated with volume changes.
Knowing this elastic dipole, a second rank tensor fully characterizing the point-defect, one can directly obtain the long-range elastic field induced by the point-defect and its interaction with other elastic fields.
The elastic interaction of point defects
https://www.ias.ac.in/article/fulltext/boms/006/04/0775-0798
Boson peak
Thermodynamics of Point Defects and Their Relation with Bulk Properties book
Authors: P.A. Varotsos K.D. Alexopoulos
1956 The Continuum Theory of Lattice Defects
J . D . ESHELBY