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
URL:
http://dx.doi.org/10.1007/BF01313284
Permalink
Library |
Location |
Call Number |
Volume/Issue/Year |
Availability |