Interference of an Exciton with the Continuum Absorption Caused by the Electron-Hole Exchange Interaction
- 15 October 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 4 (8), 2751-2757
- https://doi.org/10.1103/physrevb.4.2751
Abstract
When an exciton absorption overlaps a continuum background absorption, the exciton line is broadened and interferes with the background. The interference effect is investigated for an exciton superposed on the continuum absorption of its spin-orbit partner channel. For that case it is shown that the electron-hole exchange interaction is the important factor for the interference. A line-shape formula is derived which properly takes account of the interference caused by the exchange interaction, and the result is compared with experiment for NaBr with reasonable agreement.Keywords
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