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Publication Detail
Interactions in a coupled row of electrons formed in a quasi-one- dimensional quantum wire
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Smith LW, Thomas KJ, Pepper M, Hew WK, Farrer I, Anderson D, Jones GAC, Ritchie DA
  • Publication date:
    01/12/2011
  • Pagination:
    337, 338
  • Journal:
    AIP Conference Proceedings
  • Volume:
    1399
  • Status:
    Published
  • Print ISSN:
    0094-243X
Abstract
We present transport measurements in quantum wires, where the electronic system separates into two rows in the weakly-confined regime, a result of Coulomb repulsion overcoming the confining potential. This transport regime is marked by a jump in conductance from zero to 4e2/h. In wide split-gate devices this double row was seen to be coupled, leading to the creation of bonding and antibonding states. Using back-gated devices we tune the carrier density and show a density-driven transition from single- to double-row transport in the weak confinement regime. © 2011 American Institute of Physics.
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