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Thesis University of Iceland > Verkfræði- og náttúruvísindasvið > Meistaraprófsritgerðir - Verkfræði- og náttúruvísindasvið >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1946/10141

Title: 
  • Coulomb and Spin-Orbit Interaction Effects in a Mesoscopic Ring
Submitted: 
  • August 2011
Abstract: 
  • We study a ring structure on a two-dimensional electron gas
    with both Rashba and Dresselhaus spin-orbit interaction in
    an external magnetic field. The competition between the two
    kinds of SOI leads to a deformation of the charge and spin
    densities around the ring. After examining the one-electron
    eigenstates we investigate Coulomb effects. We use two different
    ring models: a continuous model with analytical single
    particle states (Tan-Inkson) and a discrete model (tight-binding) which is more convenient for many-body calculations.
    We show that for more than two electrons the deformation of
    the charge density is smeared out by the Coulomb interaction, whilst the deformation of the spin density is amplified.

Accepted: 
  • Sep 23, 2011
URI: 
  • http://hdl.handle.net/1946/10141


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