Mode softening and the temperature dependence of the atomic mean-square displacement
- 1 September 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 28 (5) , 2866-2868
- https://doi.org/10.1103/physrevb.28.2866
Abstract
The form of the temperature dependence of the mean-square displacement is derived for an atom vibrating in the presence of soft modes. The derivation, which is based on Ornstein-Zernike theory, results in a mean-square displacement with an anomalous temperature-independent positive component at temperatures greater than twice the critical temperature.Keywords
This publication has 13 references indexed in Scilit:
- The temperature dependence of the Debye–Waller factor near a phase transition: CsPbCl3Acta Crystallographica Section A, 1982
- Proton-lattice interactions and the soft mode in KH2PO4Journal of Physics C: Solid State Physics, 1982
- On temperature dependence of Debye‐Waller factor in V3Si in the temperature range from 8 to 293 KCrystal Research and Technology, 1981
- Soft mode spectroscopy in barium titanateJournal of Physics C: Solid State Physics, 1980
- A neutron diffraction study of anharmonic thermal vibrations in cubic CsPbX3Acta Crystallographica Section A, 1980
- The temperature dependence of the structures of RbCaF3, and the determination of the low temperature phasesJournal de Physique, 1980
- Debye-Waller factor, compressibility sum rule, and central peak at structural phase transitionsPhysical Review B, 1975
- Neutron-Scattering Study of the Ferroelectric Phase Transformation inPhysical Review B, 1972
- Dispersion and Damping of Soft Zone-Boundary Phonons in KMnPhysical Review B, 1972
- Critical Dynamics of SrTiforPhysical Review Letters, 1972