The E=0 octet of bilayer graphene in the filling factor range of -4 < ν < 4 is a fertile playground for many-body phenomena, yet a Landau level diagram is missing due to strong interactions and competing quantum degrees of freedom. We combine measurements and modeling to construct an empirical and quantitative spectrum. The single-particle-like diagram incorporates interaction effects effectively and provides a unified framework to understand the occupation sequence, gap energies and phase transitions observed in the octet. It serves as a new starting point for more sophisticated calculations and experiments.
@article{arxiv.1708.03644,
title = {Effective Landau Level Diagram of Bilayer Graphene},
author = {Jing Li and Yevhen Tupikov and Kenji Watanabe and Takashi Taniguchi and Jun Zhu},
journal= {arXiv preprint arXiv:1708.03644},
year = {2018}
}