https://doi.org/10.1140/epjb/e2010-10290-x
Diamagnetic susceptibility of hydrogenic donor impurity in a V-groove GaAs/Ga1-xAlxAs quantum wire
Department of
Physics, Yasouj University, Yasouj, 75914-353, Iran
Corresponding author: a khordad@mail.yu.ac.ir
Received:
7
April
2010
Revised:
10
September
2010
Published online:
17
November
2010
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-xAlxAs 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 
0 or L ∞; (iv)
the effect of non-parabolocity is not appreciable in the binding
energy and energy dependent effective mass, for energies lower
than 50 MeV.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010
