Tunable Coulomb blockade in nanostructured graphene

By Christoph Stampfer, J. Guettinger, F. Molitor, D. Graf, T. Ihn, Klaus Ensslin. 2007

233 citations recorded by the source corpus.

We report on Coulomb blockade and Coulomb diamond measurements on an etched, tunable single-layer graphene quantum dot. The device consisting of a graphene island connected via two narrow graphene constrictions is fully tunable by three lateral graphene gates. Coulomb blockade resonances are observed and from Coulomb diamond measurements, a charging energy of ≈3.5meV is extracted. For increasing temperatures, we detect a peak broadening and a transmission increase of the nanostructured graphene barriers.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/faa7901eb571511d028bfa9eb4721021cf8269f3

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Franco Nori
2. A. Rozhkov
3. Y. Bliokh
4. V. Freilikher
5. G. Giavaras
6. K. Novoselov
7. Sahel Ashhab
8. K. Bliokh

In Materials Chemistry

1. Franco Nori
2. A. Rozhkov
3. Y. Bliokh
4. G. Giavaras
5. V. Freilikher
6. K. Novoselov
7. N. M. R. Peres
8. A.K. Geim

Citations in the corpus

• Nobel Lecture: Graphene: Materials in the Flatland (2011, background): “…low-dimensional graphene nanostructures such as graphene nanoribbons (Han et al., 2007), quantum dots (Ponomarenko et al., 2008), and single electron transistors (Ponomarenko et al., 2008; Stampfer et al., 2008), where a band gap can be engineered due to quantum confinement or Coulomb blockade.”
• Electronic properties of mesoscopic graphene structures: Charge confinement and control of spin and charge transport (2011, background): “More recent experiments probed the energy spectrum of quantum dots formed in a single layer of graphene [136–138].”