Abstract
The experimental results of the Brillouin scattering in several scheelite-type crystals are briefly reviewed. The high pressure Raman scattering studies of LaNbO//4 and NdNbO//4 crystals were recently carried out and have revealed that the behavior of their lowest frequency optical modes is quite different from the one reported for BiVO//4. A lattice model for the ferroelastic transition from a tetragonal phase is presented and discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 258-264 |
| Number of pages | 7 |
| Journal | Physica B+C |
| Volume | 150 |
| Issue number | 1-2 |
| Publication status | Published - May 1987 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Engineering