Transport through graphene double dots

Molitor, F.; Dröscher, S.; Güttinger, J.; Jacobsen, A.; Stampfer, C.; Ihn, T.; Ensslin, K.
June 2009
Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p222107
Academic Journal
We present Coulomb blockade measurements in a graphene double dot system. The coupling of the dots to the leads and between the dots can be tuned by graphene in-plane gates. The coupling is a nonmonotonic function of the gate voltage. Using a purely capacitive model, we extract all relevant energy scales of the double dot system.


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