# Tunable fractional quantum Hall phases in bilayer graphene

@article{Maher2014TunableFQ, title={Tunable fractional quantum Hall phases in bilayer graphene}, author={Patrick Maher and Lei Wang and Yuanda Gao and Carlos Forsythe and Takashi Taniguchi and Kenji Watanabe and Dmitry A. Abanin and Zlatko Papi{\'c} and Paul Cadden-Zimansky and James C. Hone and Philip Kim and Cory R. Dean}, journal={Science}, year={2014}, volume={345}, pages={61 - 64} }

Breaking down graphene degeneracy Bilayer graphene has two layers of hexagonally arranged carbon atoms stacked on top of each other in a staggered configuration. This spatial arrangement results in degenerate electronic states: distinct states that have the same energy. Interaction between electrons can cause the states to separate in energy, and so can external fields (see the Perspective by LeRoy and Yankowitz). Kou et al., Lee et al., and Maher et al. used three distinct experimental setups…

## 129 Citations

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Bilayer graphene provides a unique platform to explore the rich physics in quantum Hall effect. The unusual combination of spin, valley and orbital degeneracy leads to interesting symmetry broken…

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When electrons are confined in a two-dimensional (2D) system, typical quantum–mechanical phenomena such as Landau quantization can be detected. Graphene systems, including the single atomic layer and…

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Inclusion of a topological effect caused by the hopping of electrons between the two sheets in the bilayer system allowed for an explanation of the FQHE hierarchy in the graphene bilayer in satisfactory accordance with the experimental observations.

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