Dirac and Normal Fermions in Graphite and Graphene: Implications of the Quantum Hall Effect
- 20 December 2006
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 97 (25), 256801
- https://doi.org/10.1103/physrevlett.97.256801
Abstract
Spectral analysis of the Shubnikov–de Haas magnetoresistance oscillations and the quantum Hall effect (QHE) measured in quasi-2D highly oriented pyrolytic graphite (HOPG) [ Phys. Rev. Lett. 90, 156402 (2003)] reveals two types of carriers: normal (massive) electrons with Berry phase 0 and Dirac-like (massless) holes with Berry phase . We demonstrate that recently reported integer- and semi-integer QHEs for bilayer and single-layer graphenes take place simultaneously in HOPG samples.
Other Versions
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