Multiple-phonon resonant Raman scattering in CuGaxIn1−xS2 single crystals
| Autor: | N.N. Syrbu, V.E. Tezlevan, A.V. Dorogan, E. Arama, L.L. Nemerenco |
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| Rok vydání: | 2009 |
| Předmět: |
Condensed matter physics
Phonon scattering Scattering Chemistry Organic Chemistry Inelastic scattering Mott scattering Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Inorganic Chemistry Resonant inelastic X-ray scattering Condensed Matter::Materials Science symbols.namesake X-ray Raman scattering Condensed Matter::Superconductivity symbols Condensed Matter::Strongly Correlated Electrons Electrical and Electronic Engineering Physical and Theoretical Chemistry Raman spectroscopy Spectroscopy Raman scattering |
| Zdroj: | Optical Materials. 31:970-975 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2008.11.002 |
| Popis: | In this work it is researched the Raman scattering spectra of CuGaхIn1−xS2 solid compounds for x = 1.0,0.9 and 0.8 at 10–60 K. LO-phonons, 2LO-phonons etc can be observed while going far from the excitation energy (6 phonons of the E symmetry and the phonons of the B1 and B2 symmetry) in the scattering process (Stokes scattering). The intensity of the resonant Raman scattering lines depends on the temperature and on the difference of the excitation energies and the energies of the polariton excitons. It was revealed that the interband Frohlich interaction is a dominant effect in the resonant scattering process E(L) and is related to the multi-phonon modes. |
| Databáze: | OpenAIRE |
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