Examining the influence of electric field on the photoionization cross section and spin polaronic shift in a semimagnetic double quantum well.

In the current research, we performed a numerical investigation of a shallow donor impurity confined in a diluted magnetic semiconductor (DMS) double quantum well (DQW) made of a Cd 1 − x w Mn x w Te / Cd 1 − x b Mn x b Te under the applied electric field in the z -direction. The optoelectronic properties were carried out using the effective-mass approximation and the variational method. The binding energy and photoionization cross section were examined by considering different factors such as, well width, barrier width, impurity position, and Manganese mole fraction. Additionally, the spin polaronic shift corrections to the donor binding energy, caused by the strong exchange interaction between the magnetic moment of the Mn 2 + the confined carrier spin, have been examined under the aforementioned effects. [ABSTRACT FROM AUTHOR]