Coupled semiconductor quantum dots form artificial molecules where relevant energy scales controlling the interacting ground state can be easily tuned. By applying an external magnetic field it is possible to drive the system from a weak to a strong correlation regime where eventually electrons localize in space in an ordered manner reminiscent of the two-dimensional Wigner crystal. We explore the phase diagram of such "Wigner molecules" analyzing the angular correlation function obtained by the Configuration Interaction solution of the full interacting Hamiltonian. Focus is on the role of tunneling in stabilizing different ground states.
CITATION STYLE
Rontani, M., Goldoni, G., & Molinari, E. (2003). Few-electron liquid and solid phases in artificial molecules at high magnetic field. In New Directions in Mesoscopic Physics (Towards Nanoscience) (pp. 361–371). Springer Netherlands. https://doi.org/10.1007/978-94-007-1021-4_20
Mendeley helps you to discover research relevant for your work.