Phonon Instabilities in TmV
- 30 July 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 31 (5) , 307-310
- https://doi.org/10.1103/physrevlett.31.307
Abstract
The lattice instability of TmV near its cooperative Jahn-Teller phase transition is shown to be a competitive process involving distortions of and symmetry. In order to understand the soft-mode behavior, we must consider the spin-lattice coupling of the entire ground multiplet of the ion. Axial magnetic fields are found to affect dramatically the soft acoustic-mode behavior.
Keywords
This publication has 11 references indexed in Scilit:
- Brillouin scattering, ultrasonic and theoretical studies of acoustic anomalies in crystals showing Jahn-Teller phase transitionsJournal of Physics C: Solid State Physics, 1972
- Optical study of the cooperative Jahn-Teller transition in thulium vanadate, TmVO4Journal of Physics C: Solid State Physics, 1972
- The heat capacity of TmAsO4 near its Jahn-Teller transition; Evidence of a low-lying excited stateSolid State Communications, 1972
- Raman scattering investigations of Jahn-Teller induced phase transitions in TmAsO4and TmVO4Journal of Physics C: Solid State Physics, 1972
- Raman scattering and theoretical studies of Jahn—Teller induced phase transitions in some rare-earth compoundsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1972
- Soft Acoustic Mode at the Cooperative Jahn-Teller Phase Transition in Dy VPhysical Review Letters, 1972
- The properties of thulium vanadate — An example of molecular field behaviourSolid State Communications, 1972
- Magnetically Controllable Cooperative Jahn-Teller Distortion in TmAsPhysical Review Letters, 1971
- Tunneling Model of Phase Changes in Tetragonal Rare-Earth CrystalsPhysical Review Letters, 1971
- Absorption and Fluorescence Spectra of Tm3+ in YVO4 and YPO4Physica Status Solidi (b), 1971