Auflistung nach Schlagwort "Semiconductor quantum dots"

Auflistung nach Schlagwort "Semiconductor quantum dots"

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  • RKKY interaction in a chirally coupled double quantum dot system 
    Heine, A.W.; Tutuc, D.; Zwicknagl, G.; Schuh, D.; Wegscheider, W.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)
    The competition between the Kondo effect and the Ruderman-Kittel-Kasuya- Yoshida (RKKY) interaction is investigated in a double quantum dots system, coupled via a central open conducting region. A perpendicular magnetic ...
  • Single photon emission from ODT passivated near-surface GaAs quantum dots 
    Cao, Xin; Yang, Jingzhong; Li, Pengji; Zhang, Yiteng; Rugeramigabo, Eddy P.; Brechtken, Benedikt; Haug, Rolf J.; Zopf, Michael; Ding, Fei (Melville, NY : American Inst. of Physics, 2021)
    Epitaxially grown semiconductor quantum dots are promising candidates for pure single photon and polarization-entangled photon pair emission. Excellent optical properties can typically be ensured only if these so-called ...
  • Spin blockade in capacitively coupled quantum dots 
    Rogge, M.C.; Fühner, C.; Keyser, U.F.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2004)
    The spin blockade in capacitively coupled quantum dots was discussed using local anodic oxidation (LAO) and electron beam lithography. The tunability of the interdot coupling as a function of top gate voltage and magnetic ...
  • Spin-orbit coupling and anisotropy of spin splitting in quantum dots 
    Könemann, J.; Haug, Rolf J.; Maude, D.K.; Fal'Ko, V.I.; Altshuler, B.L. (College Park, MD : American Physical Society, 2005)
    In lateral quantum dots, the combined effect of both Dresselhaus and Bychkov-Rashba spin-orbit coupling is equivalent to an effective magnetic field ±BSO which has the opposite sign for sz=±1/2 spin electrons. When the ...
  • Temperature-dependent broadening of coherent current peaks in InAs double quantum dots 
    Dani, Olfa; Hussein, Robert; Bayer, Johannes C.; Kohler, Sigmund; Haug, Rolf J. (London : Springer Nature, 2022)
    Quantum systems as used for quantum computation or quantum sensing are nowadays often realized in solid state devices as e.g. complex Josephson circuits or coupled quantum-dot systems. Condensed matter as an environment ...
  • Tuning the onset voltage of resonant tunneling through InAs quantum dots by growth parameters 
    Hapke-Wurst, I.; Zeitler, U.; Keyser, U.F.; Haug, Rolf J.; Pierz, Klaus; Ma, Z. (College Park, MD : American Institute of Physics, 2003)
    A study was conducted on the onset voltage of resonant tunneling through indium arsenide (InAs) quantum dots by growth parameters. It was found that the onset voltage of the first step decreased from 200 mV to 0 with ...
  • Two-path transport measurements with bias dependence on a triple quantum dot 
    Kotzian, M.; Rogge, M.C.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)
    We present transport measurements on a lateral triple quantum dot with a star-like geometry and one lead attached to each dot. [1] The system is studied in a regime close to established quadruple points, where all three ...