Use of Morphic Effects for the Study of Vibrational and Optical Properties of Impurity Atoms in Crystals
- 15 November 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 163 (3), 882-895
- https://doi.org/10.1103/PhysRev.163.882
Abstract
Morphic effects are effects induced in a crystal by the lowering of its symmetry through the application of a generalized external force. In this paper we study the effects of static electric fields and of strains on the frequencies of localized vibration modes associated with substitutional impurity atoms in homo-polar crystals. It is shown that the splitting of the triple degeneracy of such modes when the impurity is at a site of cubic symmetry by the application of these generalized forces can yield information about the anharmonic forces, electric dipole moment, and electronic polarizability associated with the impurity atom.Keywords
This publication has 8 references indexed in Scilit:
- Effects of Uniaxial Stress and Electric Fields on Localized Vibrational ModesPhysical Review Letters, 1965
- Some effects of point defects on the vibrations of crystal latticesReports on Progress in Physics, 1965
- Vibrational absorption of carbon in siliconJournal of Physics and Chemistry of Solids, 1965
- A method for determining the magnitude of the Raman scattering matrix element for diamond-type crystalsJournal de Physique, 1965
- The direct-inspection method in systems with a principal axis of symmetryActa Crystallographica, 1952
- Third-Order Elastic Coefficients in Trigonal and Hexagonal CrystalsPhysical Review B, 1952
- Physical properties of crystals: the direct-inspection methodActa Crystallographica, 1952
- Third-Order Elastic Coefficients of CrystalsPhysical Review B, 1951