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
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