Physics – Condensed Matter – Superconductivity
Scientific paper
2011-09-18
Phys. Rev. B 85, 035414(2012)
Physics
Condensed Matter
Superconductivity
7 pages, 8 figures, with technical details, published version
Scientific paper
We study the electronic instabilities of near 1/4 electron doped graphene using the functional renormalization group (FRG) and variational Monte-Carlo method. A modified FRG implementation is utilized to improve the treatment of the von Hove singularity. At 1/4 doping the system is a chiral spin density wave state exhibiting the anomalous quantized Hall effect, or equivalently a Chern insulator. When the doping deviates from 1/4, the $d_{x^2-y^2}+i d_{xy}$ Cooper pairing becomes the leading instability. Our results suggest near 1/4 electron or hole doped graphene is a fertile playground for the search of Chern insulators and superconductors.
Lee Dung-Hai
Wang Faming
Wang Qiang-Hua
Wang Wan-Sheng
Xiang Yuan-Yuan
No associations
LandOfFree
Functional renormalization group and variational Monte Carlo studies of the electronic instabilities in graphene near 1/4 doping 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 Functional renormalization group and variational Monte Carlo studies of the electronic instabilities in graphene near 1/4 doping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Functional renormalization group and variational Monte Carlo studies of the electronic instabilities in graphene near 1/4 doping will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-561098