Lattice dynamics of FeCl2
- 28 August 1976
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 9 (16) , 2987-2995
- https://doi.org/10.1088/0022-3719/9/16/008
Abstract
The phonon dispersion curves of FeCl2 are calculated using the static-displaced-shell model, introduced by Cran and Sangster for MnF2 (ibid., vol.7, p.1937 (1974)). The model takes into account the effect of static intra-ionic polarization. The model is fitted to the acoustic dispersion curves measured by Yelon, Scherm and Vettier (Solid St. Commun., vol.15, p.391 (1974)), and to the dielectric constant epsilon perpendicular to ( infinity ). A second version of the calculation also includes fitting to optical frequencies interpolated from Lockwood's infrared and Raman spectroscopic measurements on MnCl2 and CoCl2 (1973). The fit to experimental data is fairly good and the parameters assume reasonable values.Keywords
This publication has 22 references indexed in Scilit:
- Magnetoelastic waves and a group-theoretical determination of selection rules for magnon-phonon interactions in antiferromagnetic FeCl2Journal of Physics C: Solid State Physics, 1974
- Lattice dynamics of manganese fluorideJournal of Physics C: Solid State Physics, 1974
- Static Equilibrium Conditions for a Rigid-Ion CrystalPhysical Review B, 1973
- Hydrostatic-Pressure Study of Antiferromagnetic Resonance in FePhysical Review B, 1973
- Phonon-phonon interaction and two-phonon Raman scattering in NaClJournal of Physics C: Solid State Physics, 1972
- Magnetic Properties of Fein Zero Field. I. ExcitationsPhysical Review B, 1972
- Thermodynamics Near the Two-Fluid Critical Mixing Point in-Physical Review Letters, 1970
- Metamagnetic Phase Transitions and Hysteresis inPhysical Review B, 1967
- The elastic and dielectric properties of crystals with polarizable atomsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962
- Space Groups and Their RepresentationsPublished by Elsevier ,1957