Circular Dichroism in the Urbach Region of KI
- 15 January 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 1 (2) , 921-924
- https://doi.org/10.1103/physrevb.1.921
Abstract
Measurements of the circular dichroism in the low-energy tail of the first exciton absorption peak in KI are presented and discussed. The magnitude of the observed dichroism allows the rms splitting of the -like hole to be evaluated. The result is that the cubic part of the Urbach perturbation is at least 15 times larger than the noncubic part.
Keywords
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