Ground state normalized binding energy of impurity in asymmetric quantum wells under hydrostatic pressure

• Asymmetric quantum wells under hydrostatic pressure is considered.
• A variational calculation has been performed.
• Ground state normalized binding energy is calculated.
• Turning point as function of shallow impurity position in quantum well is calculated.

We have studied and computed variationally the impurity energy, impurity energy turning points, and ground state normalized binding energy as functions of the impurity position for shallow impurity in asymmetric quantum wells under hydrostatic pressure. We found that the normalized binding energy significantly depends on the asymmetry of the well, besides depending on the impurity position and hydrostatic pressure. Also, the dependence of the positive normalized binding energy on the pressure can be used to find out the degree of the asymmetry of the well or the impurity position in the well.

The variation of the normalized binding energy with the impurity position for three different P values. β = 1 and L0 = 240 Å.Figure optionsDownload as PowerPoint slide