Answers are grounded in this paper and cite their sources.
The first study of pressure dependence of Brillouin scattering spectra in SrTiO3 up to 9 GPa is reported. The longitudinal and transverse acoustic velocities increase with increasing pressure up to 6 GPa, and show an anomaly near 6.5 GPa associated with a cubic-to-tetragonal structural phase transition. The transition pressure is in good agreement with the value expected from other data, showing the validity of the mean field approximation-in SrTiO3. The pressure dependence of the elastic constants is determined by means of the pressure-dependent density derived from the acoustic velocities in the cubic phase. The acoustic mode Grüneisen parameters of SrTiO3 are determined and discussed in comparison with those of NaCl.
No takes yet. Share an insight, caveat, or question.
Ishidate et al. (1988) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: