@article{Welander2010-08-27Local-51593,
  year={2010},
  doi={10.1103/PhysRevB.82.073307},
  title={Localization of electrons and formation of two-dimensional Wigner spin lattices in a special cylindrical semiconductor stripe},
  number={7},
  volume={82},
  issn={1098-0121},
  journal={Physical Review B},
  author={Welander, Erik and Yakimenko, Iryna I. and Berggren, Karl-Fredrik},
  note={Article Number: 073307}
}

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    <dc:creator>Yakimenko, Iryna I.</dc:creator>
    <dc:creator>Berggren, Karl-Fredrik</dc:creator>
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    <dc:creator>Welander, Erik</dc:creator>
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    <dcterms:title>Localization of electrons and formation of two-dimensional Wigner spin lattices in a special cylindrical semiconductor stripe</dcterms:title>
    <dcterms:issued>2010-08-27</dcterms:issued>
    <dcterms:abstract xml:lang="eng">We consider a two-dimensional (2D)electron gas residing on the surface of a cylinder of a given radius R in the presence of a parabolic confinement along the axis of the cylinder. In this way the system of electrons forms a closed cylindrical stripe (wire). Using the local spin-density technique we first consider localization of electrons within of a potential barrier embedded in the wire. Barriers with sharp retangularlike features are populated in steps because of Coulomb blockade. The nature of a single bound state in a short soft barrier (quantum point contacts) at pinch-off is discussed in terms Coulomb blockade. For a shallow barrier-free wire we retrace the structural transitions at low electron densities from a single chain of localized states to double and triple chains (Wigner spin lattices). The present system is related to the model of a inhomogeneous quantum wire introduced recently by Güçlü et al. [Phys. Rev. B 80, 201302(R) (2009)]. An important aspect is, however, the present extension into higher electron densities as well as to the low-density regime and the formation of 2D Wigner microlattices.</dcterms:abstract>
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    <dc:contributor>Berggren, Karl-Fredrik</dc:contributor>
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