Spin-Disorder-Induced Raman Scattering in Europium Chalcogenides
- 7 November 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 39 (19), 1215-1218
- https://doi.org/10.1103/physrevlett.39.1215
Abstract
The four independent symmetry components of first-order phonon Raman scattering in the paramagnetic phase of europium chalcogenides have been measured around the fundamental gap. The usually unobservable antisymmetric component is found to be the largest one. The resonance enhancements of the different components, their relative intensities, and the scattered spectra are explained by a parameter-free microscopic theory which takes into account the spin disorder of the ions and the spin-orbit interaction of the electrons.
Keywords
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