Raman Scattering in Amorphous As-Se System
- 1 June 1980
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 19 (6)
- https://doi.org/10.1143/jjap.19.1027
Abstract
Raman spectra of amorphous As x Se1-x system (0≤x≤0.5) were measured and the spectra were interpreted with the molecular model of Lucovsky and Martin. In the Se-rich region the observed Raman spectra are well reproduced by the superposition of the Raman intensity of pure Se, As2Se3 and As2Se4 in proportion to x. In the As-rich region the Raman spectrum at x=0.45 is well described by the average of those at x=0.4 and 0.5. The amorphous state of As x Se1-x for 0<x8 ring, Se n chain, AsSe3 unit and As2Se4 unit. In the As-rich region, the local structure change due to the substitution of As and Se is small.Keywords
This publication has 11 references indexed in Scilit:
- Thermally induced effects in evaporated chalcogenide films. I. StructurePhysical Review B, 1978
- Variation of Raman spectrum after optical excitation in amorphous As2Se3 at 1.6°KSolid State Communications, 1976
- Vibrational excitations of. I. Disordered phasesPhysical Review B, 1976
- The Structure and Crystallization of Amorphous SeJapanese Journal of Applied Physics, 1975
- Infrared vibrational spectrum of crystallinePhysical Review B, 1975
- Electronic properties of vitreous and liquid AsSe alloys (I). Solid alloysJournal of Non-Crystalline Solids, 1974
- Temperature Dependence of the Raman Spectrum and the Depolarization Spectrum of AmorphousPhysical Review B, 1973
- Optic Modes in Amorphous andPhysical Review B, 1972
- Lattice Vibrations and Interlayer Interactions in Crystalline andPhysical Review B, 1971
- The effects of valency on transport properties in vitreous binary alloys of seleniumJournal of Non-Crystalline Solids, 1970