Ordered Loop Current States in Bilayer Graphene

Details Ordered Loop Current States in Bilayer Graphene Ordered Loop Current States in Bilayer Graphene

2012-02-03

arxiv.org/abs/1202.0821v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 10 figures

Scientific paper

The zero gap non-interacting electronic structure of bilayer graphene is unstable to infinitesimal interactions. Indeed a gap is found in experiments but none of the states proposed so far is consistent with its properties. Here we show that a Magneto-Electric(ME) state is consistent with the experimental observations. This state breaks time-reversal symmetry through a pair of spontaneously generated current loops in each layer, and has odd-parity with respect to the two layers. We also show that such a state wins over the Haldane-type state with spontaneous quantum Hall effect (AHE) which has even parity, for large enough interactions and low enough temperature. We also propose further experiments to confirm this conclusion and the possibility that at higher temperatures the Haldane-type state is realized.

Affiliated with

Also associated with

No associations

Rating

Ordered Loop Current States in Bilayer Graphene 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 Ordered Loop Current States in Bilayer Graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ordered Loop Current States in Bilayer Graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-329441