[Th-P2-E] Emergent Quantum Phases in 2D Materials

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[Th-P2-E-02] Non-Abelian Chern Insulator in Rhombohedral multilayer graphene

〇Taketo Uchida¹, Takuto Kawakami¹, Mikito Koshino¹ (1. The University of Osaka (Japan))

We demonstrate a non-Abelian Chern insulator at ν = 2 in rhombohedral multilayer graphene. Hartree–Fock calculations show that a spin-degenerate band carries total Chern number |C| = 1, arising from SU(2) holonomy. This system provides a realistic platform for non-Abelian band topology.