Vibrational spectra for a-Si and a-SiH0.12 have been measured by inelastic neutron scattering, directly yielding the phonon density of states for the former material, and the partial phonon density of states for H vibrations for the latter. The relevance of these results to the interpretation of infrared and Raman spectra is discussed.
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Kamitakahara et al. (1984) studied this question.
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