One‐ and Two‐Phonon Raman Scattering in Ternary Phosphides ZnSiP2, ZnGeP2, CdSiP2
- 1 June 1979
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 93 (2) , 531-538
- https://doi.org/10.1002/pssb.2220930210
Abstract
One‐ and two‐phonon Raman scattering (RS) of orientated single crystals of ZnSiP2, ZnGeP2, and CdSiP2 are investigated. For the first time in ZnSiP2 the lattice vibrations B2(L/T) 146/145 and B1 466 cm−1 are observed, and the values of L–T splitting of polar modes are determined. It is concluded that in crystals of ZnGeP2, ZnSiP2, and CdSiP2 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 A2‐phonons in ZnGeP2, ZnSiP2, and CdSiP2.Keywords
This publication has 9 references indexed in Scilit:
- Raman scattering and phonon dispersion in Si and GaP at very high pressurePhysical Review B, 1975
- Effects of phonon dynamics on electrons in one-dimensional conductorsJournal de Physique Lettres, 1975
- Optical Phonons in ZnGeP2 and CdGeP2Physica Status Solidi (b), 1974
- Optical Phonons in CdSiP2Physica Status Solidi (b), 1974
- Multiphonon Raman Spectrum of SiliconPhysical Review B, 1973
- Second-Order Raman Spectrum of GermaniumPhysical Review B, 1973
- Two-phonon Raman spectra of Si and GaPSolid State Communications, 1972
- Vibrational Modes in ZnSiPhysical Review B, 1970
- Raman Effect in Zinc OxidePhysical Review B, 1966