Abstract
AbstractThe band structures of the chalcopyrite semiconductors ZnGeP2 and ZnSiA2 are calculated using the empirical pseudopotential method as applied successfully already to ZnSiP2 and CdSiP2. The band structures are in good agreement with experimental data. The influences of all three tetragonal parts of the crystal potentials (antisymmetric cation potentials, tetragonal compressions, and distortions of the anion sublattices) on the band structures and on optical transition energies are investigated in detail.
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