Phonon-Internal-Mode Hybridization in KCl: C
- 26 September 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 39 (13) , 819-822
- https://doi.org/10.1103/physrevlett.39.819
Abstract
Recent work has shown that the resonant mixing of defect internal modes with lattice phonons can lead to striking modifications of the one-phonon coherent neutron-scattering cross section. Here, line shapes for phonons in KCl: C are calculated from a two-level model and shown to agree reasonably well with experiment. Our results demonstrate that neutron scattering can be used to study the coupling of complex defects with the lattice even at very low defect concentrations.
Keywords
This publication has 12 references indexed in Scilit:
- Neutron-Inelastic-Scattering Measurements of Phonon Perturbations by Defects in Irradiated CopperPhysical Review Letters, 1975
- Change of phonon dispersion curves due to interstitials in AlZeitschrift für Physik B Condensed Matter, 1975
- Possibility of Observing Self-Interstitials in Cu and Al by Neutron ScatteringPhysical Review Letters, 1975
- Tunneling states of Cin various alkali halides: Study of resolved tunneling structures and "paraelastic sidebands" in the vibrational absorption of CPhysical Review B, 1975
- Vibrational absorption of tunneling molecular defects in crystals. II. Tunneling molecules under applied stress (KCl:C)Physical Review B, 1974
- Neutron Inelastic Scattering by Coupled Defect-Phonon Modes in KCl-CNPhysical Review Letters, 1974
- The Hindered Rotation in Various Fields of Cubic SymmetryPhysica Status Solidi (b), 1972
- Tunneling States of Defects in SolidsReviews of Modern Physics, 1970
- Ultrasonic Velocity and Attenuation in Alkali Halides Containing CN− I. Experimental ResultsPhysica Status Solidi (b), 1968
- Vibrations of random dilute alloysProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967