One- and two-phonon raman scattering in ternary phosphides ZnSiP2, ZnGeP2, CdSiP2
- 1. Kievskij Gosudarstvennyj Univ. (Ukrainian SSR)
Description
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 GAMMA, T, N of Brillouin zone and has the general form for all compounds investigated. An estimation is given of the frequencies of inactive A2-phonons in ZnGeP2, ZnSiP2 and CdSiP2. (author)
Additional details
Publishing Information
- Journal Title
- Phys. Status Solidi B
- Journal Volume
- 93
- Journal Issue
- 2
- Series
- Phys. Status Solidi B.
- Journal Page Range
- 531-538
- ISSN
- 0370-1972
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- German Democratic Republic
- INIS RN
- 11498974
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- BRILLOUIN ZONES; CADMIUM PHOSPHIDES; LATTICE VIBRATIONS; MONOCRYSTALS; OPTICAL MODES; PERMITTIVITY; PHONONS; RAMAN SPECTRA; SEMICONDUCTOR MATERIALS; SILICON PHOSPHIDES; TETRAGONAL LATTICES
- Descriptors DEC
- CADMIUM COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; OSCILLATION MODES; PHOSPHIDES; PHOSPHORUS COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; SILICON COMPOUNDS; SPECTRA; ZONES