Lattice vibrations induced by impurities in polar crystals

dc.contributor.advisor	Paranjape, V. V.
dc.contributor.author	Klein, Heather
dc.date.accessioned	2017-06-06T13:40:34Z
dc.date.available	2017-06-06T13:40:34Z
dc.date.created	1980
dc.date.issued	1980
dc.identifier.uri	http://knowledgecommons.lakeheadu.ca/handle/2453/2387
dc.description.abstract	The effect of a single or a pair of polarizable impurities on the vibrational frequencies of a solid is investigated. It is shown that the introduction of impurities alters the energy of the crystal due to the coupling of the dipoles through the polarization of the impurities and perturbs the longitudinal-optical frequencies of the crystal. Both the perturbed frequency and the change in energy of the crystal are calculated explicitly and the results are examined at very small and very large separation of the impurities to demonstrate agreement with the literature.
dc.language.iso	en_US
dc.subject	Lattice dynamics
dc.subject	Induced polarization
dc.title	Lattice vibrations induced by impurities in polar crystals
dc.type	Thesis
etd.degree.name	Master of Science
etd.degree.level	Master
etd.degree.discipline	Physics
etd.degree.grantor	Lakehead University