STARK-EFFECT FOR DONORS IN DOUBLE-QUANTUM WELLS

The problem of a hydrogenic donor in a semiconductor double quantum we ll under a homogeneous electric held is studied by variational means. The energy levels corresponding to the quantum states is, 2s, 2p have been calculated with the help of the many-element variational basis co nsisting of the exponential functions. The influence of the electric f ield on the donor binding energy is determined for different impurity positions. The 1s-2p transition energies have been calculated for a po ssible comparison with experiment.