Charge detection in a bilayer graphene quantum dot

Details Charge detection in a bilayer graphene quantum dot Charge detection in a bilayer graphene quantum dot

2011-10-26

arxiv.org/abs/1110.5811v1

Phys. Status Solidi B 248, No. 11, 2684-2687 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures

Scientific paper

10.1002/pssb.201100189

We show measurements on a bilayer graphene quantum dot with an integrated charge detector. The focus lies on enabling charge detection with a 30 nm wide bilayer graphene nanoribbon located approximately 35 nm next to a bilayer graphene quantum dot with an island diameter of about 100 nm. Local resonances in the nanoribbon can be successfully used to detect individual charging events in the dot even in regimes where the quantum dot Coulomb peaks cannot be measured by conventional techniques.

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