Spectral properties of rotating electrons in quantum dots and their relation to quantum Hall liquids

Details Spectral properties of rotating electrons in quantum dots and their relation to quantum Hall liquids Spectral properties of rotating electrons in quantum dots and their relation to quantum Hall liquids

2006-05-12

arxiv.org/abs/cond-mat/0605321v1

J. Phys.: Condens. Matter 19 (2007) 076211 (25pp)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages 18 figures

Scientific paper

10.1088/0953-8984/19/7/076211

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.

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