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On the formation of Wigner molecules in small quantum dots

S. M. Reimann·M. Koskinen·M. Manninen
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Abstract

It was recently argued that in small quantum dots the electrons could crystallize at much higher densities than in the infinite two-dimensional electron gas. We compare predictions that the onset of spin polarization and the formation of Wigner molecules occurs at a density parameter $r_s\approx 4 a_B^*$ to the results of a straight-forward diagonalization of the Hamiltonian matrix.

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S. M. Reimann, M. Koskinen, M. Manninen. 2000-04-06. On the formation of Wigner molecules in small quantum dots. https://doi.org/10.1103/physrevb.62.8108

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