Diamagnetic susceptibility of hydrogenic donor impurity in a V-groove GaAs/Ga1- x Al x As quantum wire

In this work, the diamagnetic susceptibility and the binding energy of a hydrogenic donor impurity both in the parabolic and non-parabolic conduction band models have been calculated within the effective mass approximation for a V-groove GaAs/Ga1- (x) Al (x) As quantum wire. According to the results obtained from the present work reveals that (i) the value of diamagnetic susceptibility due to the non-parabolicity effect is higher than that of parabolicity effect; (ii) the values of diamagnetic susceptibility and binding energy due to the non-parabolicity effect is not appreciable at low Al mole fractions; (iii) the diamagnetic susceptibility approaches to the bulk value both in L -> infinity; (iv) the effect of non-parabolocity is not appreciable in the binding energy and energy dependent effective mass, for energies lower than 50 MeV.