Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9778210 | Journal of Non-Crystalline Solids | 2005 | 6 Pages |
Abstract
The vibrational frequencies of Ge4, S4, I4, SI3, Ge2I2, S2I2, Ge2S2, Ge2SI, GeS3, GeI2S, Ge3S and GeI3 are computed using first principles. These frequencies are compared with those found experimentally in the Raman spectra of Ge0.25S0.75âxIx glass. In this way, it is found that Ge4, GeI2S and GeI3 tetrahedra occur in the glass. These tetrahedra are of different sizes so they stack to form the floppy phase of the glass.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
V. Radhika Devi, M. Bindu Madhavi, E.L. Srihari, Keshav N. Shrivastava, Punit Boolchand,