Anharmonic effects and Faust-Henry coefficient of CdTe in the vicinity of the energy gap

Stergiou, VC; Kontos, AG; Raptis, YS

dc.contributor.author	Stergiou, VC	en
dc.contributor.author	Kontos, AG	en
dc.contributor.author	Raptis, YS	en
dc.date.accessioned	2014-03-01T01:27:56Z
dc.date.available	2014-03-01T01:27:56Z
dc.date.issued	2008	en
dc.identifier.issn	1098-0121	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18641
dc.subject	Energy Gap	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	WAVELENGTH OPTICAL PHONONS	en
dc.subject.other	RAMAN-SCATTERING	en
dc.subject.other	TEMPERATURE-DEPENDENCE	en
dc.subject.other	THERMAL-EXPANSION	en
dc.subject.other	PRESSURE-DEPENDENCE	en
dc.subject.other	IONIC CRYSTALS	en
dc.subject.other	DISPERSION	en
dc.subject.other	SPECTRA	en
dc.subject.other	SEMICONDUCTORS	en
dc.subject.other	DETECTORS	en
dc.title	Anharmonic effects and Faust-Henry coefficient of CdTe in the vicinity of the energy gap	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevB.77.235201	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevB.77.235201	en
heal.identifier.secondary	235201	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Crystallodynamic properties of CdTe are studied, by Raman spectroscopy, as a function of the temperature and excitation energy. The temperature dependence (in the range of 20-300 K) of the peak frequency and the full width at half maximum of the Raman scattering bands, which were obtained from the ≈0 optical (LO and TO) lattice vibrations, are mainly attributed to the anharmonic effects due to the phonon decay toward the ≠0 points of the Brillouin zone. The intensity ratio (LO/TO) of the phonons is also studied as a function of the temperature and excitation energy, leading to a Faust-Henry coefficient that is nearly constant over the energy range investigated (1.49-1.54 eV). © 2008 The American Physical Society.	en
heal.publisher	AMER PHYSICAL SOC	en
heal.journalName	Physical Review B - Condensed Matter and Materials Physics	en
dc.identifier.doi	10.1103/PhysRevB.77.235201	en
dc.identifier.isi	ISI:000257289500051	en
dc.identifier.volume	77	en
dc.identifier.issue	23	en