Ab initio study of the vibrational properties of crystalline TeO2: The alpha, beta, and gamma phases

Details Ab initio study of the vibrational properties of crystalline TeO2: The alpha, beta, and gamma phases Ab initio study of the vibrational properties of crystalline TeO2: The alpha, beta, and gamma phases

2008-03-28

arxiv.org/abs/0803.4056v2

Physical Review B 73, 104304 (2006)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.73.104304

Based on density functional perturbation theory, we have studied the vibrational properties of three crystalline phases of tellurium dioxide: paratellurite alpha-TeO2, tellurite beta-TeO2, and the new phase gamma-TeO2, recently identified experimentally. Calculated Raman and IR spectra are in good agreement with available experimental data. The vibrational spectra of alpha- and beta-TeO2 can be interpreted in terms of vibrations of TeO2 molecular units.

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