22 citations · 115 across the 17 of their papers we have counts for
6 papers · 1 filter
Engineering topologically protected zero-dimensional interface end states in antiferromagnetic heterojunction graphene nanoflakes
Cheng-Ming Miao, Yu-Hao Wan, Qing-Feng Sun +1
We investigate the energy band structure and energy levels of a heterojunction composed of two antiferromagnetic graphene nanoflakes with opposite in-plane antiferromagnetic orderi…
Quarter-quantized thermal Hall effect with parity anomaly
Yu-Hao Wan, Qing-Feng Sun
We show that in the proximity of s-wave superconductors, the magnetic topological surface states can transform into Majorana surface state, featuring a single gapless Majorana cone…
Magnetization-Induced Phase Transitions on the surface of 3D Topological Insulators
Yu-Hao Wan, Qing-Feng Sun
From the low-energy model, the topological field theory indicates that the surface magnetization can open a surface gap in 3D topological insulators (TIs), resulting in a half-quan…
Classification of Chern Numbers Based on High-Symmetry Points
Yu-Hao Wan, Peng-Yi Liu, Qing-Feng Sun
The Chern number is a crucial topological invariant for distinguishing the phases of Chern insulators. Here we find that for Chern insulators with inversion symmetry, the Chern num…
Universal theory of tunable second-order topological corner states induced by interlayer coupling in twist bilayer Chern insulators
Cheng-Ming Miao, Yu-Hao Wan, Ying-Tao Zhang +1
We propose a universal theory for tunable second-order topological corner states induced by interlayer coupling in bilayer Chern insulators with opposite Chern numbers. We demonstr…
The General Principle behind Magnetization-induced Second-Order Topological Corner States in the Kane-Mele Model
Cheng-Ming Miao, Lizhou Liu, Yu-Hao Wan +2
We propose a general principle for realizing second-order topological corner states in the modified Kane-Mele model with magnetization. It is demonstrated that the sign of the edge…