| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1675605 | Thin Solid Films | 2006 | 4 Pages |
Abstract
We demonstrate self-assembly of GaAs double quantum dots (DQDs) by droplet epitaxy in a lattice-matched system in addition to concentric quantum double rings (CQDRs). The growth mechanism of these complex nanostructures is understood by taking into account the two crystallization processes; the counter-migration (of Ga and As atoms)-induced crystallization and droplet-edge-enhanced crystallization. By tuning the balance between these two processes, completely different types of the coupled quantum nanostructures are created.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
T. Mano, T. Noda, M. Yamagiwa, N. Koguchi,