Vibrational states in a model amorphous Cu57Zr43
- 27 November 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (33), L969-L974
- https://doi.org/10.1088/0022-3719/13/33/002
Abstract
The vibrational density of states of a model amorphous Cu57Zr43 alloy was calculated by the recursion method. A general agreement was obtained between the calculated result and the experimental one reported for amorphous Cu44Zr56 alloy. The wavenumber-dependent spectra for both longitudinal and transverse excitations were also calculated. The elastic constants estimated from the sound velocity (Young's modulus E=0.80 Mbar, shear modulus G=0.30 Mbar) agreed fairly well with the experimental results (E=0.745 Mbar, G=0.244 Mbar). The Debye temperature was estimated to be 327K, which is 30K higher than that determined from experimental DOS spectra.Keywords
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