New Interpretation of the Soft-X-Ray Absorption Spectra of Several Alkali Halides
- 29 July 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 33 (5) , 298-301
- https://doi.org/10.1103/physrevlett.33.298
Abstract
Theoretical calculations have thus far been used to interpret the soft-x-ray spectra of several alkali halides in terms of band structures alone, excluding the possibility that core excitons are formed below the band edge. By independently determining the threshold for band transitions from x-ray photoemission spectroscopy and optical-gap data, we conclude that these spectra are in fact almost entirely excitonic in nature.Keywords
This publication has 19 references indexed in Scilit:
- Absorption of Soft X Rays by Insulators with a Forbidden Exciton TransitionPhysical Review Letters, 1973
- Optical Dielectric Function of the Lithium-Fluoride CrystalPhysical Review Letters, 1973
- The role of the electronic polaron in the soft X-ray absorption of the lithium halidesJournal of Physics C: Solid State Physics, 1972
- Electronic Structure of NaBrPhysical Review B, 1971
- Energy Bands and Optical Properties of NaClPhysical Review B, 1971
- Hartree-fock determination of the energy bands and the optical properties of lithium bromideJournal of Physics and Chemistry of Solids, 1971
- Energy Bands and the Optical Properties of LiClPhysical Review B, 1970
- Soft X-Ray Spectra of the Lithium Halides and Their InterpretationPhysical Review Letters, 1970
- Hartree-Fock energy bands in LiClJournal of Physics C: Solid State Physics, 1970
- Measurement of Photoabsorption of the Lithium Halides Near the LithiumEdgePhysical Review Letters, 1968