Abstract
A first-principles relativistic orthogonalized-plane-wave calculation has been used to determine the energy eigenvalues of grey tin at seven key points of the reduced zone. An extended zone method has been used as an interpolation scheme to map out the band structure in the remainder of the zone. Optical constants and derivative optical constants have been calculated from the parameters. The calculated normal incidence reflectivity is compared to experiment. A detailed critical-point analysis of the calculated optical spectra is presented. Valence-band mass parameters, effective masses, and factors at several points in the zone have been obtained and are compared to available experimental data.
- Received 2 December 1969
DOI:https://doi.org/10.1103/PhysRevB.2.352
©1970 American Physical Society