Szczegóły publikacji
Opis bibliograficzny
Few-electron systems in quantum cylinders / B. SZAFRAN, J. ADAMOWSKI, S. BEDNAREK // Physical Review. B, Condensed Matter and Materials Physics ; ISSN 1098-0121. — Tytuł poprz.: Physical Review B : Condensed Matter. — 2000 — vol. 61 iss. 3, s. 1971–1977. — Bibliogr. s. 1976–1977
Autorzy (3)
Dane bibliometryczne
| ID BaDAP | 6884 |
|---|---|
| Data dodania do BaDAP | 2001-11-10 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.61.1971 |
| Rok publikacji | 2000 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, B |
Abstract
Systems of excess electrons confined in cylindrical semiconductor quantum dots, i.e., artificial atoms of cylindrical symmetry, are studied by the unrestricted Hartree-Fock method. The confinement potential is assumed in the form of three-dimensional cylindrically symmetric potential well of finite depth. The calculations have been performed for artificial atoms with the number of electrons from 1 to 10. We have taken into account the external magnetic field applied parallel to the axis of the cylinder and studied the influence of quantum-dot geometry on the maximum number of confined electrons and the ground-state spinorbital configuration. The applicability of the quasi-two-dimensional model of quantum dots has been discussed and the magnetic-field behavior has been predicted for quantum cylinders of comparable diameter and height. We have applied the present model to a description of single-electron charging of self-assembled quantum dots and obtained a good agreement with capacitance-spectroscopy data.
