Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.84.045436
Title: Topologically protected zero modes in twisted bilayer graphene
Authors: De Gail, R.
Goerbig, M.O.
Guinea, F.
Montambaux, G.
Castro Neto, A.H. 
Issue Date: 18-Jul-2011
Citation: De Gail, R., Goerbig, M.O., Guinea, F., Montambaux, G., Castro Neto, A.H. (2011-07-18). Topologically protected zero modes in twisted bilayer graphene. Physical Review B - Condensed Matter and Materials Physics 84 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.84.045436
Abstract: We show that a twisted graphene bilayer can reveal unusual topological properties at low energies, as a consequence of a Dirac-point splitting. These features rely on a symmetry analysis of the electron hopping between the two layers of graphene and we derive a simplified effective low-energy Hamiltonian which captures the essential topological properties of a twisted graphene bilayer. The corresponding Landau levels peculiarly reveal a degenerate zero-energy mode which cannot be lifted by strong magnetic fields. © 2011 American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/98424
ISSN: 10980121
DOI: 10.1103/PhysRevB.84.045436
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

63
checked on Jul 9, 2018

WEB OF SCIENCETM
Citations

61
checked on Jun 20, 2018

Page view(s)

34
checked on Jul 6, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.