Evidence for higher order topology in Bi and Bi0.92Sb0.08

L Aggarwal, P Zhu, TL Hughes, V Madhavan - Nature communications, 2021 - nature.com
Higher order topological insulators (HOTIs) are a new class of topological materials which
host protected states at the corners or hinges of a crystal. HOTIs provide an intriguing …

Effective model for fractional topological corner modes in quasicrystals

C Wang, F Liu, H Huang - Physical Review Letters, 2022 - APS
High-order topological insulators (HOTIs), as generalized from topological crystalline
insulators, are characterized with lower-dimensional metallic boundary states protected by …

Even–Odd Layer-Dependent Exchange Bias Effect in MnBi2Te4 Chern Insulator Devices

B Chen, X Liu, Y Li, H Tay, T Taniguchi, K Watanabe… - Nano …, 2024 - ACS Publications
Magnetic topological materials with coexisting magnetism and nontrivial band structures
exhibit many novel quantum phenomena, including the quantum anomalous Hall effect, the …