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.

Few-electron liquid and solid phases in artificial molecules at high magnetic field / M., Rontani; Goldoni, Guido; Molinari, Elisa. - STAMPA. - 125:(2003), pp. 361-371.

Few-electron liquid and solid phases in artificial molecules at high magnetic field

GOLDONI, Guido;MOLINARI, Elisa
2003

Abstract

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.
2003
New directions in mesoscopic physics (towards nanoscience)
9781402016646
SPRINGER
PAESI BASSI
Few-electron liquid and solid phases in artificial molecules at high magnetic field / M., Rontani; Goldoni, Guido; Molinari, Elisa. - STAMPA. - 125:(2003), pp. 361-371.
M., Rontani; Goldoni, Guido; Molinari, Elisa
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/461676
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