Please use this identifier to cite or link to this item:
|Title:||Quantum hall effect in twisted bilayer graphene|
Castro Neto, A.H.
Von Klitzing, K.
|Citation:||Lee, D.S., Riedl, C., Beringer, T., Castro Neto, A.H., Von Klitzing, K., Starke, U., Smet, J.H. (2011-11-16). Quantum hall effect in twisted bilayer graphene. Physical Review Letters 107 (21) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.107.216602|
|Abstract:||We address the quantum Hall behavior in twisted bilayer graphene transferred from the C face of SiC. The measured Hall conductivity exhibits the same plateau values as for a commensurate Bernal bilayer. This implies that the eightfold degeneracy of the zero energy mode is topologically protected despite rotational disorder as recently predicted. In addition, an anomaly appears. The densities at which these plateaus occur show a magnetic field dependent offset. It suggests the existence of a pool of localized states at low energy, which do not count towards the degeneracy of the lowest band Landau levels. These states originate from an inhomogeneous spatial variation of the interlayer coupling. © 2011 American Physical Society.|
|Source Title:||Physical Review Letters|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 13, 2018
WEB OF SCIENCETM
checked on Jun 11, 2018
checked on May 11, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.