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OBLIQUE PHONONS IN UNIAXIAL CRYSTALS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/9745

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dc.creator Frech, Roger en_US
dc.date.accessioned 2006-06-15T13:47:38Z
dc.date.available 2006-06-15T13:47:38Z
dc.date.issued 1976 en_US
dc.identifier 1976-RR'-4 en_US
dc.identifier.uri http://hdl.handle.net/1811/9745
dc.description Author Institution: Department of Chemistry, University of Oklahoma en_US
dc.description.abstract Near-normal incidence infrared reflectivity data in uniaxial crystals in which the principal plane is orthogonal to the plane of incidence can be simply decomposed into an extraordinary wave contribution and an ordinary wave contribution. The extraordinary wave contribution is shown to result from an oblique phonon resonance. The symmetry of oblique phonons Is examined by considering the direction of the phonon in the vicinity of the Brillouin zone center (B. Z. C.) $(k \simeq 0)$ rather than the formal symmetry precisely ac the B. Z. C. $(k \simeq 0)$. The apparent mixing of A and E modes which occurs in certain oblique phonons in these uniaxial systems is described in terms of a microscopic model rather than the usual macroscopic model. en_US
dc.format.extent 89342 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title OBLIQUE PHONONS IN UNIAXIAL CRYSTALS en_US
dc.type article en_US