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FEW-ELECTRON LIQUID AND SOLID PHASES IN ARTIFICIAL MOLECULES AT HIGH MAGNETIC FIELD (2002)
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BibTeX
@MISC{Rontani02few-electronliquid,
author = {Massimo Rontani and Guido Goldoni and Elisa Molinari},
title = {FEW-ELECTRON LIQUID AND SOLID PHASES IN ARTIFICIAL MOLECULES AT HIGH MAGNETIC FIELD},
year = {2002}
}
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Abstract
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. 1.
Keyphrases
two-dimensional wigner crystal ordered manner reminiscent interacting ground state different ground state external magnetic field coupled semiconductor quantum dot strong correlation regime full interacting hamiltonian wigner molecule relevant energy scale configuration interaction solution angular correlation function artificial molecule phase diagram
