Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-10-13
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 3 figures
Scientific paper
We study the effect of spatial modulations in the interlayer hopping of graphene bilayers, such as those that arise upon shearing or twisting. We show that their single-particle physics, characterized by charge localization and recurrent formation of zero-energy bands as the pattern period L increases, is governed by a non-Abelian gauge potential arising in the low-energy electronic theory due to the coupling between layers. We show that such gauge-type couplings give rise to a confining potential that, for certain discrete values of L, localizes states at zero energy in particular regions of the Moir\'e patterns. We also draw the connection between the recurrence of the flat zero-energy bands and the non-Abelian character of the potential.
González Jose
Guinea Francisco
San-Jose Pablo
No associations
LandOfFree
Non-Abelian gauge potentials in graphene bilayers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Non-Abelian gauge potentials in graphene bilayers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-Abelian gauge potentials in graphene bilayers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-500045