Double-layer-gate architecture for few-hole GaAs quantum dots

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Wang, D.Q. ; Hamilton, A.R. ; Farrer, I. ; Ritchie, D.A. ; Klochan, O. (2016)
  • Publisher: IOP Publishing
  • Subject:
    arxiv: Condensed Matter::Materials Science | Condensed Matter::Mesoscopic Systems and Quantum Hall Effect

We report the fabrication of single and double hole quantum dots using a double-layer-gate design on an undoped accumulation mode AlxGa1-xAs/GaAs heterostructure. Electrical transport measurements of a single quantum dot show varying addition energies and clear excited states. In addition, the two-level-gate architecture can also be configured into a double quantum dot with tunable inter-dot coupling.
  • References (25)
    25 references, page 1 of 3

    [1] Chekhovich E A, Makhonin M N, Tartakovskii A I, Yacoby A, Bluhm H, Nowack K C and Vandersypen L M K 2012 Nature Materials 12 494

    [2] Bulaev D V and Loss D 2005 Phys. Rev. Lett. 95 076805

    [3] Fischer J, Coish W A, Bulaev D V and Loss D 2008 Phys. Rev. B 78 155329

    [4] Fischer J and Loss D 2010 Phys. Rev. Lett. 105 266603

    [5] Keane Z K et al 2011 Nano Lett. 11 3147

    [6] Klochan O, Hamilton A R, das Gupta K, Sfigakis F, Beere H E and Ritchie D A 2015 New J. Phys. 17 033035

    [7] Petta J R, Johnson A C, Taylor J M, Laird E A, Yacoby A, Lukin M D, Marcus C M, Hanson M P, Gossard A C 2005 Science 309 2180

    [8] Koppens F H L, Buizert C, Tielrooij K J, Vink I T, Nowack K C, Meunier T, Kouwenhoven L P and Vandersypen L M K 2006 Nature 442 766

    [9] Brunner D, Gerardot B D, Galgarno P A, Wu¨st G, Karrai K, Stoltz N G, Petroff P M, Warburton R J 2009 Science 325 70

    [10] De Greve K, McMahon P L, Press D, Ladd T D, Bisping D, Schneider C, Kamp M, Worschech L, Ho¨fling S, Forchel S and Yamamoto Y 2011 Nature Phys. 7 872

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