6533b837fe1ef96bd12a1faa
RESEARCH PRODUCT
Spectral properties of rotating electrons in quantum dots and their relation to quantum Hall liquids
M. KoskinenStephanie ReimannJuha-pekka NikkarilaM. Manninensubject
PhysicsAngular momentumStrongly Correlated Electrons (cond-mat.str-el)Condensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsFOS: Physical sciencesElectronLandau quantizationQuantum Hall effectCondensed Matter PhysicsCondensed Matter - Strongly Correlated ElectronsTotal angular momentum quantum numberExcited stateMesoscale and Nanoscale Physics (cond-mat.mes-hall)Energy levelGeneral Materials ScienceSpin (physics)description
The exact diagonalization technique is used to study many-particle properties of interacting electrons with spin, confined in a two-dimensional harmonic potential. The single-particle basis is limited to the lowest Landau level. The results are analyzed as a function of the total angular momentum of the system. Only at angular momenta corresponding to the filling factors 1, 1/3, 1/5 etc. the system is fully polarized. The lowest energy states exhibit spin-waves, domains, and localization, depending on the angular momentum. Vortices exist only at excited polarized states. The high angular momentum limit shows localization of electrons and separation of the charge and spin excitations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-02-02 | Journal of Physics: Condensed Matter |