The Raman spectrum of gallium metal

Whereas metallic elements with the fcc, hcp and bcc structures have no Raman-active vibrations, solid gallium is found to have one Raman band at 246 cm −1. This band is not observed for molten gallium, and it is attributed to the symmetric stretching vibration of the two Ga 2 units in the primitive...

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Bibliographic Details
Published in:Chemical physics letters 2000-08, Vol.326 (3), p.311-313
Main Authors: Creighton, J.A., Withnall, R.
Format: Article
Language:English
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Summary:Whereas metallic elements with the fcc, hcp and bcc structures have no Raman-active vibrations, solid gallium is found to have one Raman band at 246 cm −1. This band is not observed for molten gallium, and it is attributed to the symmetric stretching vibration of the two Ga 2 units in the primitive unit cell. Since solid gallium has Raman-active vibrational modes and has already been reported to exhibit SERS, it should also exhibit plasma resonance enhancement of the Raman scattering by the metal itself, a phenomenon which has not yet been observed experimentally.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(00)00782-X