6533b871fe1ef96bd12d17d2
RESEARCH PRODUCT
Vertical quantum dots with elliptically deformed cross sections
David Guy AustingSeigo TaruchaSeigo TaruchaSatoshi SasakiM. KoskinenM. ManninenStephanie Reimannsubject
PhysicsArtificial atomCondensed matter physicsQuantum dotElectrical and Electronic EngineeringDeformation (meteorology)Condensed Matter PhysicsSymmetry (physics)Spectral lineElectronic Optical and Magnetic MaterialsSpin-½description
Abstract Few-electron vertical quantum dot artificial atoms with circular and elliptically deformed cross sections are investigated. Because of the high symmetry of the lateral confining potential, circular dots show a pronounced shell structure. With the lifting of level degeneracies, even a small deformation in shape is found to radically alter the shell structure leading to significant modifications of the addition energy spectra, and to induce change in the total spin.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-12-01 | Physica B: Condensed Matter |