Abstract
Optical reflectivity measurements over a wide spectral range and at different temperatures together with self-consistent electronic band structure calculations have been used to investigate the electronic structure of the and compounds. The electronic structure of the compounds is investigated theoretically using an energy-band approach in combination with the linear-response formalism. The energy-band structure is obtained within the local-spin-density approximation (LSDA) and within its extension that explicitly takes into account the on-site Coulomb interaction A remarkable agreement between theory and experiment has been found.
- Received 3 December 1999
DOI:https://doi.org/10.1103/PhysRevB.62.1742
©2000 American Physical Society