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Optical Phonon Analysis in the A V B VI C VII Compounds
Author(s) -
Teng M. K.,
Balkanski M.,
Massot M.,
Ziolkiewicz M. K.
Publication year - 1974
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220620117
Subject(s) - raman spectroscopy , phonon , ionic bonding , spectral line , sulfur , chemistry , substitution (logic) , mode (computer interface) , analytical chemistry (journal) , raman scattering , mass spectrum , feature (linguistics) , crystallography , physics , atomic physics , mass spectrometry , condensed matter physics , optics , ion , organic chemistry , computer science , quantum mechanics , linguistics , philosophy , chromatography , programming language , operating system
The Raman spectra of SbSBr, BiSI, SbSeI, and BiSeI are investigated and compared with those of SbSI. Following the analysis of each observed mode from one substituted compound to another, a set of normal mode functions is proposed to account for the overall spectral feature of these compounds. The results are then tentatively interpreted in terms of the mass change based on a semi‐ionic model. It is shown that the agreement with experimental data is excellent for the system SbSBrSbSIBiSI. In the contrary, a serious discrepancy exists in the SbSeIBiSeI system suggesting that the binding of sulfur and neighbouring atoms is substantially affected by the SSe substitution in these compounds.