Dynamics of glassy and liquid selenium

W. A. Phillips, U. Buchenau, N. Näcker, A. J. Dianoux, W. Petry

Research output: Contribution to journalArticlepeer-review

140 Scopus citations


Inelastic-neutron-scattering studies of glassy, liquid, and polycrystalline selenium have been performed at temperatures between 100 and 600 K. A self-consistent data evaluation, taking careful account of multiple and multiphonon scattering, shows that a complete interpretation is possible in terms of a temperature-dependent density of vibrational states, together with diffusion broadening of the elastic line. This density of states is used to calculate thermodynamic properties and to show that about one-third of the additional entropy of the liquid is vibrational. The results raise a number of questions concerning current theories of the glass transition.

Original languageEnglish
Pages (from-to)2381-2384
Number of pages4
JournalPhysical Review Letters
Issue number21
StatePublished - 1989
Externally publishedYes


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