Multiple Cotunneling in Large Quantum Dot Arrays
نویسندگان
چکیده
منابع مشابه
Multiple cotunneling in large quantum dot arrays.
We investigate the effects of inelastic cotunneling on the electronic transport properties of gold nanoparticle multilayers and thick films at low applied bias, inside the Coulomb-blockade regime. We find that the zero-bias conductance, g(0)(T), in all systems exhibits Efros-Shklovskii-type variable range hopping transport. The resulting typical hopping distance, corresponding to the number of ...
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We study the noise of the cotunneling current through one or several tunnel-coupled quantum dots in the Coulomb blockade regime. The various regimes of weak and strong, elastic and inelastic cotunneling are analyzed for quantum-dot systems (QDS) with few-level, nearly-degenerate, and continuous electronic spectra. We find that in contrast to sequential tunneling where the noise is either Poisso...
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S. Schmaus,1 V. Koerting,2,* J. Paaske,3 T. S. Jespersen,3 J. Nygård,3 and P. Wölfle1 1Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, D-76128 Karlsruhe, Germany 2Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland 3The Niels Bohr Institute and Nano-Science Center, University of Copenhagen, DK-2100 Copenhagen, Denmark Received 11 ...
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A noninteracting quantum-dot arrays side coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamiltonian. The conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. Moreover, we have fo...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2005
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.95.076806