Correlation Effect of Two Donors in a Nano Dot under the Influence of Magneticfield

Abstract

Magnetic field induced binding energy of two donors in a parabolic GaAs/AlGaAs nano dot is reported. The calculations are carried out using variation ansatz within the single band effective mass approximation. The binding energy is estimated for different inter-impurity distances in the presence of magnetic field. The correlation effect of two donors is introduced through the wave function. It is found that interimpurity distance, correlation of donors and the magnetic field strength make the electron more binding.