Now showing items 1-6 of 6

• #### Broken Symmetry States and Divergent Resistance in Suspended Bilayer Graphene ﻿

(Nature Publishing Group, 2009)
Mono- and bilayer graphene have generated tremendous excitement owing to their unique and potentially useful electronic properties$^1$. Suspending single-layer graphene flakes above the substrate${^2}{^,}{^3}$ has been ...
• #### Electron-hole asymmetric integer and fractional quantum Hall effect in bilayer graphene ﻿

(American Association for the Advancement of Science (AAAS), 2014)
The nature of fractional quantum Hall (FQH) states is determined by the interplay between the Coulomb interaction and the symmetries of the system. The unique combination of spin, valley, and orbital degeneracies in bilayer ...
• #### Fractional Quantum Hall Phase Transitions and Four-Flux States in Graphene ﻿

(American Physical Society (APS), 2013)
Graphene and its multilayers have attracted considerable interest because their fourfold spin and valley degeneracy enables a rich variety of broken-symmetry states arising from electron-electron interactions, and raises ...
• #### Local Compressibility Measurements of Correlated States in Suspended Bilayer Graphene ﻿

(American Physical Society, 2010)
Bilayer graphene has attracted considerable interest due to the important role played by many-body effects, particularly at low energies. Here we report local compressibility measurements of a suspended graphene bilayer. ...
• #### Measurements of Interaction-Driven States in Monolayer and Bilayer Graphene ﻿

(2013-10-17)
In materials systems with flat energy bands and limited disorder, interactions among electrons dominate and can dramatically alter physical behavior. Traditionally, two-dimensional electron gases (2DEGs) have offered ...
• #### Unconventional Sequence of Fractional Quantum Hall States in Suspended Graphene ﻿

(American Association for the Advancement of Science (AAAS), 2012)
Graphene provides a rich platform to study many-body effects, owing to its massless chiral charge carriers and the fourfold degeneracy arising from their spin and valley degrees of freedom. We use a scanning single-electron ...