Phys. Rev. Lett. 82, 5325–5328 (1999)Spontaneous Symmetry Breaking in Single and Molecular Quantum DotsSee Also: Erratum Received 30 December 1998; published in the issue dated 28 June 1999 Classes of spontaneous symmetry breaking at zero and low magnetic fields in single quantum dots (QD's) and quantum dot molecules (QDM's) are discussed in relation to the ratio RW between the interelectron Coulomb repulsion and the harmonic confinement, using spin-and-space unrestricted Hartree-Fock calculations. These include Wigner crystallization for RW>1, and formation of noncrystallized electron puddles localized on the individual dots in QDM's, as well as spin-density waves in single QD's, for RW<1. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.5325
DOI:
10.1103/PhysRevLett.82.5325
PACS:
73.20.Dx, 71.45.Lr, 73.23.-b
See AlsoErratum: Constantine Yannouleas and Uzi Landman, Erratum: Spontaneous Symmetry Breaking in Single and Molecular Quantum Dots [Phys. Rev. Lett. 82, 5325 (1999)], Phys. Rev. Lett. 85, 2220 (2000). |
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