García Hernández, M.Bermejo, F. J.Fak, B.Martínez, J.L.Enciso, E.Almarza, N.G.Criado Vega, Alberto2017-04-192017-04-191993García Hernández, M., Bermejo, F.J., Fak, B., Martínez, J.L., Enciso, E., Almarza, N.G. y Criado Vega, A. (1993). Low-frequency excitations in glassy selenium: A comparison of neutron-scattering and molecular-dynamics results. Physical Review B-Condensed Matter, 48 (1), 149-160.0163-1829http://hdl.handle.net/11441/57895The microscopic low-frequency dynamics of glassy selenium is investigated by means of the concurrent use of neutron inelastic scattering and computer simulations. A separation of the dynamic response in terms of intra- and interchain processes is achieved from the analysis of the simulation results. The S(Q,E) dynamic structure factors are analyzed in terms of the frequency moments or from a model scattering law, and the wave-vector dependence of the relevant quantities is established. Finally, the anomalous behavior of the heat capacity at moderately low temperatures is shown to be originated by mostly interchain interactions.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1103/PhysRevB.48.149