کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1814848 | 1025656 | 2008 | 7 صفحه PDF | دانلود رایگان |
Using the Bastard-type trial function for the neutral donor and the Hylleraas-type trial function for the negatively charged donor, we investigate the effect of donor positions inside the cylindrical GaAs/Ga(Al)As nanowire superlattice on their ground state energies. Results of calculation, presented in the form of contour plots of the energies corresponding to different donor positions along a cross section through symmetry axis, show a close relationship between the energies of the neutral and negatively charged donors and the charge distributions in one- and two-electron nanowire superlattices, respectively, at the point of their locations. The higher the charge density resulting from the unbound electron at a point in the heterostructure, the lower are the ground state energies of the neutral and negatively charged donors located at this point.
Journal: Physica B: Condensed Matter - Volume 403, Issue 1, 1 January 2008, Pages 5–11