The magnetoresistance of electrons in a two-dimensional array of dots has been investigated. The new commensurability oscillations were found when \(2 \mathrm{R}_{L}=\mathrm{d}\) and \(2 R_{L}=\mathrm{d} / 2\). The closed electron trajectories skipping inside the dot are responsible for these oscill
Numerical studies of electron transfers in two-dimensional multiple quantum dots
β Scribed by H. Kusumoto; S. Sakamoto; M. Tomiya
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 373 KB
- Volume
- 254
- Category
- Article
- ISSN
- 0169-4332
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β¦ Synopsis
Quantum dynamical properties of electron transfers through multiple quantum dots (QDs) are numerically investigated. The QDs are modeled as two-dimensional electron systems and the conductive properties are calculated from the time evolution of the electron wavefunctions. In addition, we propose a new technique dealing with the electron-electron correlation and demonstrate the dynamical simulations of the Coulomb blockade as well as the spin blockade.
π SIMILAR VOLUMES
In this paper we review our recent study of coherent electronic properties of coupled twodimensional quantum dot arrays using numerical exact-diagonalization methods on a Mott-Hubbard type correlated tight-binding model. We predict the existence of a novel kind of persistent current in a two-dimensi