Chern bands of twisted bilayer graphene: Fractional Chern insulators and spin phase transition
When one of the graphene layers of magic-angle twisted bilayer graphene is nearly aligned with its hexagonal boron nitride substrate (a configuration dubbed TBG/hBN), the active electronic bands are nearly flat and have a Chern number C=±1. Recent experiments demonstrated a quantum anomalous Hall ef...
| Main Authors: | , |
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| 格式: | 文件 |
| 语言: | English |
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American Physical Society
2020-05-01
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| 丛编: | Physical Review Research |
| 在线阅读: | http://doi.org/10.1103/PhysRevResearch.2.023238 |