Chaotic Dirac Billiard in Graphene Quantum Dots

By L. Ponomarenko, F. Schedin, M. Katsnelson, R. Yang, E. H. Hill, K. Novoselov, A.K. Geim. Science, 2007

2,012 citations recorded by the source corpus.

The exceptional electronic properties of graphene, with its charge carriers mimicking relativistic quantum particles and its formidable potential in various applications, have ensured a rapid growth of interest in this new material. We report on electron transport in quantum dot devices carved entirely from graphene. At large sizes (>100 nanometers), they behave as conventional single-electron transistors, exhibiting periodic Coulomb blockade peaks. For quantum dots smaller than 100 nanometers, the peaks become strongly nonperiodic, indicating a major contribution of quantum confinement. Random peak spacing and its statistics are well described by the theory of chaotic neutrino billiards. Short constrictions of only a few nanometers in width remain conductive and reveal a confinement gap of up to 0.5 electron volt, demonstrating the possibility of molecular-scale electronics based on graphene.

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

View Paper: https://www.semanticscholar.org/paper/21dfc36a7ad514adbdf20e07b6fbebe58350f8c5

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. K. Novoselov
2. A.K. Geim
3. E. Rossi
4. E. Hwang
5. N. M. R. Peres
6. S. Adam
7. Franco Nori
8. M. Goerbig

In Materials Chemistry

1. K. Novoselov
2. N. M. R. Peres
3. A.K. Geim
4. Hui‐Ming Cheng
5. E. Hwang
6. S. Adam
7. E. Rossi
8. M. Goerbig

Citations in the corpus

• Electronic transport in two-dimensional graphene (2010, background): “Coulomb blockade of charge transfer between the dots (Ponomarenko et al., 2008) explains”