Exchange and Coulomb interactions of two electrons in double ellipsoidal quantum dots
| Autor: | M. Moradi Lm, E. Sadeghi |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics
Coulomb's constant Condensed matter physics Electric potential energy Exchange interaction Perturbation (astronomy) Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Ellipsoid Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Quantum dot Coulomb Atomic physics |
| Zdroj: | Physica E: Low-dimensional Systems and Nanostructures. 70:141-145 |
| ISSN: | 1386-9477 |
| DOI: | 10.1016/j.physe.2015.03.004 |
| Popis: | The present study seeks to scrutinize the interactions of two electrons on the electronic properties of double ellipsoidal quantum dots (EQD). In this regard, the effective-mass approximation within a perturbation scheme is used and the Coulomb and exchange energies of the two electrons ellipsoidal quantum dot are calculated for GaAs/GaAlAs/AlAs structure. The results showed that the Coulomb and exchange energies depend not only on the thickness of the intermediate layer but also on the ellipticity constant. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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