Abstract
Chirally stacked neutral N-layer graphene systems with N ≥ 2 exhibit spontaneous inversion symmetry breaking and interaction induced charge gaps due to interlayer exchange interactions. A variety of distinct broken symmetry states are distinguished by their charge, spin, and valley Hall conductivities, by their orbital magnetizations, and by their edge state properties. In the spinless case, quantum anomalous and valley Hall states are favored by a weak magnetic field and by an electric field between the graphene layers, respectively. At interfaces between different phases one dimensional gapless modes exhibit novel Luttinger liquid behaviors.
| Original language | English |
|---|---|
| Article number | 012002 |
| Journal | Journal of Physics: Conference Series |
| Volume | 334 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2011 |
| Event | 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology, HMF-19 - Fukuoka, Japan Duration: 1 Aug 2010 → 6 Aug 2010 |