Symmetry of the EL 2 center in GaAs
Bagraev N. T.
Optical absorption under conditions of uniaxial compression of GaAs single crystals makes it possible to identify the model of an EL 2 center. In this model the charge states of a double donor (D°,D +, and D + + ) reveal a C3v symmetry and are formed from the wave functions L, Г, and X, respectively, of the conduction band valleys.
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