Abstract
The effects of electric field on the hydrogenic impurity states in quantum wire are studied by a variational method. The binding energy is calculated as functions of the transverse dimension of the quantum wire, and the donor-impurity position for different fields. The electron-phonon interaction is considered in the calculations by taking both the confined bulk longitudinal optical (LO) phonons and interface optical (IO) phonons as well as the impurity-ion phonon coupling. The numerical results for several II–VI and III–V quantum wires are given and discussed as examples. The calculated results confirm that the electron-phonon interaction reduces the binding energies of impurity states and enhances the stark shifts.
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