Low frequency excitations in vitreous si
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A.J. Dianoux; U. Buchenau; M. Prager; N. Nücker
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Article
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1986
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Elsevier Science
⚖ 350 KB
Inelastic neutron scattering from vitreous silica reveals that, in addition to the sound waves, there is a strong contribution from other vibrational modes in the frequency region above 150 GHz. From an analysis of their inelastic structure factor, we have put forward a simple model which can descri