Abstract
Density fluctuations in Cu57Zr43 metallic glass have been studied in terms of eigen-frequencies of longitudinal and transverse phonon modes in effective medium approximation. Two different theoretical approaches used for the numerical calculations are: (1) self-consistent phonon theory developed by Takeno and Goda for amorphous solids and (2) model approach of Hubbard and Beeby. The results have been compared with the results of Kobayashi and Takeuchi obtained through recursion method. The low wave vector transfer region of computed dispersion curves have been used in order to determine the elastic and thermal properties of the glass. The results are found to be in excellent agreement with the results obtained through recursion technique. Further, the vibrational part of specific heat using phonon eigen-frequencies is also calculated and compared with experimental results of Suck et al. A good qualitative agreement is found.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call