Universal behavior of the vibrational state density in glasses
Zemlyanov M. G., V. K. Malinovskii M. G., Novikov V. N., Parshin P. P. , Sokolov A. P.
The vibrational state density of glassy materials of different chemical compositions was determined by the method of inelastic scattering of cold neutrons. In the low-energy region of the spectrum the behavior of the vibrational state density is found to be universal, though not of the Debye type, in various glassy materials.