Pressure Dependence of Reflectivity of Se: Experimental Evidence for Large Local-Field Corrections
- 29 March 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 36 (13) , 740-744
- https://doi.org/10.1103/physrevlett.36.740
Abstract
The pressure dependence of the reflectivity of trigonal and amorphous Se has been measured between 1.1 and 4.5 eV using a new technique. The results indicate that local-field corrections are large. Structure near 2 eV suggests a localized excitation in both the amorphous and the crystalline material.Keywords
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