Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9789794 | Physica E: Low-dimensional Systems and Nanostructures | 2005 | 4 Pages |
Abstract
We theoretically investigate the mechanisms for the magnetic field-induced singlet-triplet transition of two electrons in vertically coupled quantum dots, as a function of the field strength and direction. Our numerical approach is based on a real-space description of single-particle states in realistic samples and exact diagonalization of carrier-carrier Coulomb interaction. The three-electron system is also discussed, and we show that the magnetic field drives non-trivial transitions in the ground and excited states.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Devis Bellucci, Massimo Rontani, Guido Goldoni, Filippo Troiani, Elisa Molinari,