Berlin 2001 – wissenschaftliches Programm

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A: Atomphysik

A 1: Posters Monday (Cluster, Atoms in Fields)

A 1.20: Poster

Montag, 2. April 2001, 12:30–15:00, AT3

QUANTUM CALCULATION OF SUPERATOMS STRUCTURE AND ITS APPLICATION IN MASSIVE MEMORY CELLS — •Andrew Loboda — Comput. Dept. OHMI, P. O. Box 116, Odessa-9, 65009, Ukraine

In paper there are considered a problem of calculation of the superatoms system (spherical nucleus of some semiconductive material, alloyed selectively by donors and surrounded by the non-admixtured matrice of the material with less forbidden zone gap) [1]. Quantum mechanical calculation on the basis of method [1,2] is carried out. The wave functions zeroth basis is found from the Schrodinger equation with spherically symmetric potential which includes the potential of ionized donors, the Hartree-Foch-Kohn-Sham functional and the positive difference of minimums for the nucleus and matrice conductivity zones. The correlation corrections of the high orders are taken into account within the Green functions method). We have taken into account all correlation corrections of the second order and dominated classes of the higher orders diagrams (electrons screening, particle-hole interaction, mass operator iterations) (c.f. [4-7]). For superatomic system (nucleus: Al0.35Ga0.65As; nuclei charge Z=20; matrice: GaAs) it is been obtained the corresponding sequence of energy levels 1s2p3d and etc. The superatoms radius is estimated as 390 A. We have considered and analyzed the possibilities of creation of the single electrons counter on the basis of the ionized superatom and memory cells for computer systems on the basis of the superatoms massive [3,1].