physica status solidi (b) · 1979 · 35 citations · 8 references
Natural SciencesChemistryPhysicsCondensed Matter PhysicsSolid State PhysicsSpectroscopyCrystal ChemistryCrystal LatticeCrystalline MaterialsElectron-phonon InteractionsOptical Properties Of SolidsRaman SpectroscopyBrillouin ScatteringBrillouin ZonesLattice VibrationsPhonon Density Of StatesPhonon Dispersion RelationsPhonon ScatteringPhononsRaman Scattering
Abstract One‐ and two‐phonon Raman scattering (RS) of orientated single crystals of ZnSiP 2 , ZnGeP 2 , and CdSiP 2 are investigated. For the first time in ZnSiP 2 the lattice vibrations B 2 (L/T) 146/145 and B 1 466 cm −1 are observed, and the values of L–T splitting of polar modes are determined. It is concluded that in crystals of ZnGeP 2 , ZnSiP 2 , and CdSiP 2 a completely symmetric component of the second‐order RS spectra is formed by overtones and gives the distribution of the phonon state density of the lattice of these compounds. This distribution is determined in the main by the points Λ, T, N of Brillouin zone and has the general form for all compounds investigated. An estimation is given of the frequencies ofinactive A 2 ‐phonons in ZnGeP 2 , ZnSiP 2 , and CdSiP 2 .
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T. C. Damen, S. P. S. Porto, B. Tell · Physical Review · 1966 · 2K citations
Multiphonon Raman Spectrum of Silicon
P. A. Temple, C. E. Hathaway · Physical review. B, Solid state · 1973 · 682 citations
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