Extended Data Fig. 6: Illustrations of spontaneous broken-symmetry states at charge neutral point.
From: Spontaneous broken-symmetry insulator and metals in tetralayer rhombohedral graphene
Illustrations of layer polarized insulator (LPI, also named as F phase), quantum anomalous Hall insulator (QAH), ALL (Fi) state and quantum spin Hall insulator (QSH). K and K’ indicate two valleys, arrows indicate spin up and down, and black and grey planes indicate graphene layers.
