Spatial degeneracies of strain-split polar phonon frequencies

Anastassakis, E

dc.contributor.author	Anastassakis, E	en
dc.date.accessioned	2014-03-01T01:17:07Z
dc.date.available	2014-03-01T01:17:07Z
dc.date.issued	2001	en
dc.identifier.issn	0031-8965	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14364
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Light polarization	en
dc.subject.other	Light transmission	en
dc.subject.other	Phonons	en
dc.subject.other	Strain	en
dc.subject.other	Stress analysis	en
dc.subject.other	Polar phonon frequencies	en
dc.subject.other	Spatial degeneracies	en
dc.subject.other	Crystals	en
dc.title	Spatial degeneracies of strain-split polar phonon frequencies	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/1521-396X(200103)184:1<11::AID-PSSA11>3.0.CO;2-Y	en
heal.identifier.secondary	http://dx.doi.org/10.1002/1521-396X(200103)184:1<11::AID-PSSA11>3.0.CO;2-Y	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	In polar cubic crystals under strain, the splittings of long-wavelength optical phonon frequencies depend on the direction of propagation. It is shown that for propagation in specific directions the splittings disappear. Such spatial degeneracies are depicted through geometrical structures known as frequency quadrics, and resemble analogous situations of light propagation along the optic axes of biaxial crystals.	en
heal.publisher	WILEY-V C H VERLAG GMBH	en
heal.journalName	Physica Status Solidi (A) Applied Research	en
dc.identifier.doi	10.1002/1521-396X(200103)184:1<11::AID-PSSA11>3.0.CO;2-Y	en
dc.identifier.isi	ISI:000167991700003	en
dc.identifier.volume	184	en
dc.identifier.issue	1	en
dc.identifier.spage	11	en
dc.identifier.epage	17	en