Ab initio electronic structure calculations are presented for five photographically relevant silver halide crystals: AgCl, AgBr, (Formula presented)-AgI, (Formula presented)-AgI, and (Formula presented)-AgI. The full-potential linear augmented-Slater-type-orbital implementation of the local-density approximation is employed. Theoretical predictions for most observed features, such as bandwidths and the location of band gaps, are in good agreement with experiment. Although band-gap magnitudes are underestimated, the relative ordering of the direct gaps is correctly predicted for the five crystals.
|Original language||English (US)|
|Number of pages||5|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Jan 1 1997|