24 citations · 167 across the 19 of their papers we have counts for
19 papers
Anti-higher-order topological insulators
Cheng-Ming Miao, Yu-Hao Wan, Ying-Tao Zhang +1
Duality is a fundamental concept in physics that connects complementary opposites like particles and holes. Similarly, while topological states in topological insulators localize a…
Second-order topological insulator induced by compensated altermagnetism without bulk spin splitting
Lizhou Liu, Qing-Feng Sun, Ying-Tao Zhang
We theoretically demonstrate a second-order topological insulating phase induced by compensated altermagnetism, while keeping the bulk gap unchanged, in a two-dimensional topologic…
Tunable two-dimensional Dirac-Weyl semimetal phase induced by altermagnetism
Lizhou Liu, Qing-Feng Sun, Ying-Tao Zhang
We demonstrate a tunable Dirac-Weyl semimetal phase in two dimensions, realized by introducing in-plane d-wave altermagnetism into a Dirac system. This phase hosts both a central D…
Characterizing second-order topological insulators via entanglement topological invariant in two-dimensional systems
Yu-Long Zhang, Cheng-Ming Miao, Qing-Feng Sun +2
Higher-order topological insulators have attracted significant interest in recent years. However, identifying a universal topological invariant capable of characterizing higher-ord…
Tunable Majorana corner states driven by superconducting phase bias in a vertical Josephson junction
Cheng-Ming Miao, Yu-Hao Wan, Ying-Tao Zhang +1
The realization and manipulation of Majorana zero modes is a key step in achieving topological quantum computation. In this paper, we demonstrate the existence of Majorana corner s…
Two-Dimensional Higher-Order Topological Metals
Lizhou Liu, Cheng-Ming Miao, Qing-Feng Sun +1
We investigate the energy band structure and energy levels of graphene with staggered intrinsic spin-orbit coupling and in-plane Zeeman fields. Our study demonstrates that staggere…
Two-dimensional Dirac semimetals with tunable edge states
Lizhou Liu, Cheng-Ming Miao, Qing-Feng Sun +1
We theoretically propose a design for two-dimensional Dirac semimetals using a bilayer-modified Bernevig-Hughes-Zhang (BHZ) model. By introducing new sites into the BHZ model, we e…
Quantum spin Hall effect in bilayer honeycomb lattices with C-type antiferromagnetic order
Lizhou Liu, Cheng-Ming Miao, Qing-Feng Sun +1
We propose a scheme to realize time-reversal symmetry-broken quantum spin Hall insulators using bilayer honeycomb lattices, combining intrinsic spin-orbit coupling, C-type antiferr…
Two-dimensional higher-order Weyl semimetals
Lizhou Liu, Qing-Feng Sun, Ying-Tao Zhang
We propose a theoretical scheme to realize two-dimensional higher-order Weyl semimetals using a trilayer topological insulator film coupled with a d-wave altermagnet. Our results s…
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…
Second-order topological corner states in zigzag graphene nanoflake with different types of edge magnetic configurations
Cheng-Ming Miao, Qing-Feng Sun, Ying-Tao Zhang
We study the energy spectrum and energy levels of the extended Kane-Mele model with magnetic atoms on their zigzag edges. It is demonstrated that the edges of ferromagnetism or ant…
Topological phase transition driven by magnetic field in one-dimensional topological superconductor rings
Cheng-Ming Miao, Qing-Feng Sun, Ying-Tao Zhang
We study the energy spectrum and transport property of a one-dimensional Kitaev quantum ring in a threading magnetic field. It is demonstrated that the magnetic field can effective…
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…
Engineering second-order topological insulators via coupling two first-order topological insulators
Lizhou Liu, Jiaqi An, Yafei Ren +3
We theoretically investigate the engineering of two-dimensional second-order topological insulators with corner states by coupling two first-order topological insulators. We find t…
Interlayer Coupling Induced Topological Phase Transition to Higher Order
Lizhou Liu, Jiaqi An, Yafei Ren +3
We theoretically find that the second-order topological insulator, i.e., corner states, can be engineered by coupling two copies of two-dimensional topological insul…
Realization of the Non-endpoint Majorana Bound States in an Extended Kitaev Chain
Xuan Zhang, Cheng-Ming Miao, Qing-Feng Sun +1
We study the energy levels and transport properties of an extended Kitaev chain with a phase gradient. It is demonstrated that the hopping phase difference can effectively induce t…
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…
Chiral Majorana fermion modes regulated by a scanning tunneling microscope tip
Yan-Feng Zhou, Zhe Hou, Ying-Tao Zhang +1
The Majorana fermion can be described by a real wave function with only two phases (0 and π) which provide a controllable degree of freedom. We propose a strategy to regulate the p…
High-Efficiency Cooper-Pair Splitter in Quantum Anomalous Hall Insulator Proximity-Coupled with Superconductor
Ying-Tao Zhang, Xinzhou Deng, Qing-Feng Sun +1
The quantum entanglement between two qubits is crucial for applications in the quantum communication. After the entanglement of photons was experimentally realized, much effort has…