Abstract:
The applicability of the oriented gas model to the calculation of Raman intensities of molecular crystals is investigated. The basic implications of the model and its consequences are discussed. The polarized spectra of only 3 out of 11 crystals considered are compatible with the model. For these, quantitative calculations based on calculated eigenvectors give reasonable agreement with experiment, while the others are in clear disagreement with available data. It is shown that assignments of unpolarized spectra based on the model's predictions may easily be erroneous. Some of the parameters affecting the calculation are analyzed, confirming the conclusion that the oriented gas model is not a reliable tool for assignment of Raman lattice bands of molecular crystals. Copyright © 1975 American Institute of Physics.
Registro:
Documento: |
Artículo
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Título: | Raman intensities of lattice modes and the oriented gas model |
Autor: | Burgos, E.; Bonadeo, H.; D'Alessio, E. |
Filiación: | Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Buenos Aires, Buenos Aires, Argentina Area de Investigación, Desarrollo y Servicios, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina Consejo Nacional de Investigaciones Cientifícàs y Tècnicas
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Año: | 1974
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Volumen: | 61
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Número: | 3
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Página de inicio: | 38
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Página de fin: | 47
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Título revista: | The Journal of Chemical Physics
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ISSN: | 00219606
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PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00219606_v61_n3_p38_Burgos.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v61_n3_p38_Burgos |
Referencias:
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- Ito, M., Suzuki, M., Yokoyama, T., Excitons, Magnons, and Phonone (1968) Proc. Int. Symp. Mol. Cryst., Beirut, 1967, , (Cambridge U.P., London)
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- Dows, D.A., See, for instance (1972) Rend. Sc. Int. Fis. “Enrico Fermi”, 55
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Citas:
---------- APA ----------
Burgos, E., Bonadeo, H. & D'Alessio, E.
(1974)
. Raman intensities of lattice modes and the oriented gas model. The Journal of Chemical Physics, 61(3), 38-47.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v61_n3_p38_Burgos [ ]
---------- CHICAGO ----------
Burgos, E., Bonadeo, H., D'Alessio, E.
"Raman intensities of lattice modes and the oriented gas model"
. The Journal of Chemical Physics 61, no. 3
(1974) : 38-47.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v61_n3_p38_Burgos [ ]
---------- MLA ----------
Burgos, E., Bonadeo, H., D'Alessio, E.
"Raman intensities of lattice modes and the oriented gas model"
. The Journal of Chemical Physics, vol. 61, no. 3, 1974, pp. 38-47.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v61_n3_p38_Burgos [ ]
---------- VANCOUVER ----------
Burgos, E., Bonadeo, H., D'Alessio, E. Raman intensities of lattice modes and the oriented gas model. 1974;61(3):38-47.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v61_n3_p38_Burgos [ ]