189 citations · 819 across the 15 of their papers we have counts for
10 papers · 1 filter
Higher-order topological phases in crystalline and non-crystalline systems: a review
Yan-Bin Yang, Jiong-Hao Wang, Kai Li +1
In recent years, higher-order topological phases have attracted great interest in various fields of physics. These phases have protected boundary states at lower-dimensional bounda…
Topological Quantum Phase Transitions in Metallic Shiba Lattices
Ning Dai, Kai Li, Yan-Bin Yang +1
Shiba bands formed by overlapping Yu-Shiba-Rusinov subgap states in magnetic impurities on a superconductor play an important role in topological superconductors. Here, we theoreti…
Structural Disorder Induced Second-order Topological Insulators in Three Dimensions
Jiong-Hao Wang, Yan-Bin Yang, Ning Dai +1
Higher-order topological insulators are established as topological crystalline insulators protected by crystalline symmetries. One celebrated example is the second-order topologica…
Higher-order Topological Anderson Insulators
Yan-Bin Yang, Kai Li, L. -M. Duan +1
We study disorder effects in a two-dimensional system with chiral symmetry and find that disorder can induce a quadrupole topological insulating phase (a higher-order topological p…
Hinge solitons in three-dimensional second-order topological insulators
Yu-Liang Tao, Ning Dai, Yan-Bin Yang +2
A second-order topological insulator in three dimensions refers to a topological insulator with gapless states localized on the hinges, which is a generalization of a traditional t…
Higher-order topological insulators and semimetals in generalized Aubry-André-Harper models
Qi-Bo Zeng, Yan-Bin Yang, Yong Xu
Higher-order topological phases of matter have been extensively studied in various areas of physics. While the Aubry-André-Harper model provides a paradigmatic example to study top…
Topological Insulators beyond Energy Band Characterization
Yan-Bin Yang, Kai Li, Yong Xu
Topological phases of matter are generally characterized by topological properties of energy bands of a system. Their transitions under preserved symmetries occur through closing a…
Type-II quadrupole topological insulators
Yan-Bin Yang, Kai Li, L. -M. Duan +1
Modern theory of electric polarization is formulated by the Berry phase, which, when quantized, leads to topological phases of matter. Such a formulation has recently been extended…
Topological Phases in Non-Hermitian Aubry-André-Harper Models
Qi-Bo Zeng, Yan-Bin Yang, Yong Xu
Topological phases have recently witnessed a rapid progress in non-Hermitian systems. Here we study a one-dimensional non-Hermitian Aubry-André-Harper model with imaginary periodic…
Topological Amorphous Metals
Yan-Bin Yang, Tao Qin, Dong-Ling Deng +2
We study amorphous systems with completely random sites and find that, through constructing and exploring a concrete model Hamiltonian, such a system can host an exotic phase of to…