257 citations · 808 across the 16 of their papers we have counts for
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Pressure dependence of the Boson peak in glassy As2S3 studied by Raman Scattering
K. S. Andrikopoulos, D. Christofilos, G. A. Kourouklis +1
A detailed pressure-dependence study of the low-energy excitations of glassy As2S3 is reported over a wide pressure range, up to 10 GPa. The spectral features of Boson peak are ana…
Raman scattering study of the a-GeTe structure and possible mechanism for the amorphous-to-crystal transition
K. S. Andrikopoulos, S. N. Yannopoulos, G. A. Voyiatzis +3
We report on an inelastic (Raman) light scattering study of the local structure of amorphous GeTe films. A detailed analysis of the temperature-reduced Raman spectra has shown that…
On the analysis of the vibrational Boson peak and low-energy excitations in glasses
S. N. Yannopoulos, K. S. Andrikopoulos, G. Ruocco
Implications of reduction procedures applied to the low energy part of the vibrational density of states in glasses and supercooled liquids are considered by advancing a detailed c…
Poisson's ratio of glass and a liquid's fragility?
Spyros N. Yannopoulos, Gyan P. Johari
The relation between Poisson's ratio of a glass and fragility of a liquid recently proposed is re-examined in light of evaluation of a large number of data available in the literat…