Experimental Investigation of the Dispersion of Collective Density Fluctuations nearin a Metallic Glass
- 3 January 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 50 (1), 49-52
- https://doi.org/10.1103/physrevlett.50.49
Abstract
By means of neutron inelastic scattering the dispersion of collective density fluctuations in a topologically disordered solid has been investigated for momentum transfers near , where the static structure factor has its first maximum. A nonzero minimum is found near . The dependence of the observed peaks in the dynamic structure factor on heat treatment is discussed and the results are compared with recent computer simulations and model calculations.
Keywords
This publication has 17 references indexed in Scilit:
- Vibrational states in a model amorphous Cu57Zr43Journal of Physics C: Solid State Physics, 1980
- Vibrational spectrum of amorphous metallic alloy Fe100-xPxJournal of Physics F: Metal Physics, 1980
- Collective excitations in liquid leadJournal of Physics F: Metal Physics, 1980
- Dispersion and Damping of Phonon-Like Excitations in Disordered SystemsPhysica Status Solidi (b), 1980
- Structure and dynamics of a two-component metallic glassJournal of Physics F: Metal Physics, 1979
- Vibrations and electronic states in a model amorphous metalPhysical Review B, 1977
- Magnetic Excitations in the Amorphous FerromagnetPPhysical Review Letters, 1975
- Short-Wavelength Collective Excitations in Liquid Rubidium Observed by Coherent Neutron ScatteringPhysical Review Letters, 1974
- Dynamic Structure Factor of a Disordered Harmonic SolidPhysical Review B, 1973
- A Theory of Phonon-Like Excitations in Non-Crystalline Solids and LiquidsProgress of Theoretical Physics, 1972