Influence of Chemistry on the Energy Band Structure: AlAs Versus GaAs |
P. Bogusławski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland and I. Gorczyca High Pressure Research Center, Polish Academy of Sciences, Warszawa, Poland |
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Energy band structure of AlAs and GaAs is analyzed in terms of the energy structure of the constituent atoms. Conduction band wave functions are projected on s-, p-, and d-symmetry atomic orbitals. The resulting information is combined with the eigenenergies of Al and Ga atoms, in order to-discuss the character of the band gaps, and the sign of deformation potentials. |
DOI: 10.12693/APhysPolA.80.433 PACS numbers: 71.25.Tn, 71.10.+x |