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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 96 (1994), S. 201-206 
    ISSN: 1434-6036
    Keywords: 72.20.Ht ; 73.20.Dx ; 73.20.Mf ; 73.40.Gk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The influence of excited levels on nonlinear transport properties of a quantum dot weakly coupled to leads is studied using a master-equation approach. A charging model for the dot is compared with a quantum mechanical model for interacting electrons. The currentvoltage curve shows Coulomb lockade and additional finestructure that is related to the excited states of the correlated electrons. Unequal coupling to the leads causes asymmetric conductance peaks. Negative differential conductances are predicted due to the existence of excited states with different spins.
    Type of Medium: Electronic Resource
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