Interband Optical Conductivity of Potassium
- 5 March 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 30 (10), 441-443
- https://doi.org/10.1103/physrevlett.30.441
Abstract
The interband optical conductivity of potassium has been calculated in the range 1-10 eV by a first-principles technique. Energy levels, wave functions, and matrix elements were obtained at 2470 inequivalent points in the Brillouin zone from a self-consistent calculation using the method of linear combinations of atomic orbitals. Good agreement with experiment was obtained. An explanation is given for the increased absorption observed in the 5-10-eV range.Keywords
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