803 citations · 3.5k across the 36 of their papers we have counts for
37 papers
Orbital Altermagnetism in Two Dimensions
Mingxiang Pan, Feng Liu, Huaqing Huang
We introduce the concept of \emph{orbital altermagnetism}, a symmetry-protected magnetic order of pure orbital degrees of freedom. It is characterized with ordered anti-parallel or…
Generalization of the Nested Wilson Loop Formalism in Topological Dirac Semimetals with Higher-order Fermi Arcs
Hui Zeng, Wenhui Duan, Huaqing Huang
We generalize the nested Wilson loop formalism, which has been playing an important role in the study of topological quadrupole insulators, to two-dimensional (2D) and 3D nonsymmor…
Intrinsic Nonlinear Hall Detection of the Néel Vector for Two-Dimensional Antiferromagnetic Spintronics
Jizhang Wang, Hui Zeng, Wenhui Duan +1
The respective unique merit of antiferromagnets and two-dimensional (2D) materials in spintronic applications inspire us to exploit 2D antiferromagnetic spintronics. However, the d…
Topological phase transition in disordered elastic quantum spin Hall system
Xiaotian Shi, Rajesh Chaunsali, Georgios Theocharis +3
We investigate the effect of disorder on topologically nontrivial states in a two dimension (2D) mechanical system. We first propose a quantum spin Hall (QSH) insulator based on an…
Phononic Stiefel-Whitney topology with corner vibrational modes in two-dimensional Xenes and ligand-functionalized derivatives
Mingxiang Pan, Huaqing Huang
Two-dimensional (2D) Stiefel-Whitney (SW) insulator is a fragile topological state characterized by the second SW class in the presence of space-time inversion symmetry. So far, SW…
Linear Response Functions Respecting Ward-Takahashi Identity and Fluctuation-Dissipation Theorem within Approximation
Hui Li, Zhipeng Sun, Yingze Su +3
The calculation of response functions in correlated electronic systems is one of the most important problems in the condensed matter physics. To obtain a physical response function…
Effective Model for Fractional Topological Corner Modes in Quasicrystals
Citian Wang, Feng Liu, Huaqing Huang
High-order topological insulators (HOTIs), as generalized from topological crystalline insulators (TCIs), are characterized with lower-dimensional metallic boundary states protecte…
A Radiation Tolerant Proton Detector Based on MAPbBr3 single crystal
Huaqing Huang, Linxin Guo, Yunbiao Zhao +3
The performance and radiation tolerance of the proton detector based on MAPbBr3 perovskite single crystal are investigated here with 3MeV protons. The detector can monitor fluence…
Liganded Xene as a Prototype of Two-Dimensional Stiefel-Whitney Insulators
Mingxiang Pan, Dexin Li, Jiahao Fan +1
Two-dimensional (2D) Stiefel-Whitney insulator (SWI), which is characterized by the second Stiefel-Whitney class, is a new class of topological phases with zero Berry curvature. As…
Topological states in quasicrystals
Jiahao Fan, Huaqing Huang
With the rapid development of topological states in crystals, the study of topological states has been extended to quasicrystals in recent years. In this review, we summarize the r…
Magnetic Weyl semimetals with diamond structure realized in spinel compounds
Wei Jiang, Huaqing Huang, Feng Liu +2
Diamond-structure materials have been extensively studied for decades, which form the foundation for most semiconductors and their modern day electronic devices. Here, we discover…
Optical Black-hole Analog Created by Topological Phase Transition with a Long-lived Horizon
Meng Kang, Huaqing Huang, Shunping Zhang +2
Hawking radiation, a manifestation of quantum field theory in curved spacetime, has stimulated extensive theoretical and experimental studies of various black-hole (BH) analogs. Ho…
Theory of Epitaxial Growth of Borophene on Layered Electride: Thermodynamic Stability and Kinetic Pathway
Xiaojuan Ni, Huaqing Huang, Kyung-Hwan Jin +2
Based on first-principles calculations, we propose that a layered electride Mg2O can serve as an effective substrate, in place of metal substrate, to grow honeycomb borophene (h-bo…
A Unified View of Topological Phase Transition in Band Theory
Huaqing Huang, Feng Liu
We develop a unified view of topological phase transitions (TPTs) in solids by revising the classical band theory with the inclusion of topology. Re-evaluating the band evolution f…
Weyl points created by a three-dimensional flat band
Yinong Zhou, Kyung-Hwan Jin, Huaqing Huang +2
Following the discovery of topological insulators (TIs), topological Dirac/Weyl semimetal has attracted much recent interest. A prevailing mechanism for the formation of Weyl point…
Theory of spin Bott index for quantum spin Hall states in non-periodic systems
Huaqing Huang, Feng Liu
This is a joint publication with the Letter by H. Huang and F. Liu [Phys. Rev. Lett. 121, 126401 (2018)]. In this work, we propose the spin Bott index to identify the quantum spin…
Quantum Spin Hall Effect and Spin Bott Index in a Quasicrystal Lattice
Huaqing Huang, Feng Liu
Despite the rapid progresses in the field of quantum spin Hall (QSH) effect, most of the QSH systems studied up to now are based on crystalline materials. Here we propose that the…
Fermionic analogue of black hole radiation with a super high Hawking temperature
Hang Liu, Jia-Tao Sun, Huaqing Huang +2
Measurement of gravitational Hawking radiation of black hole (BH) is prohibitive because of an extremely low Hawking temperature (TH). Here we demonstrate a fermionic analog of BH…
Observation of Topological Surface State in High Temperature Superconductor MgB2
Xiaoqing Zhou, Kyle N. Gordon, Kyung-Hwan Jin +9
The hunt for the benchmark topological superconductor (TSc) has been an extremely active research subject in condensed matter research, with quite a few candidates identified or pr…
Alloy engineering of topological semimetal phase transition in MgTaNbN
Huaqing Huang, Kyung-Hwan Jin, Feng Liu
Dirac, triple-point and Weyl fermions represent three topological semimetal phases, characterized with a descending degree of band degeneracy, which have been realized separately i…
Ubiquitous Ideal Spin-Orbit Coupling in a Screw Dislocation in Semiconductors
Lin Hu, Huaqing Huang, Zhengfei Wang +7
We theoretically demonstrate that screw dislocation (SD), a 1D topological defect widely present in semiconductors, exhibits ubiquitously a new form of spin-orbit coupling (SOC) ef…
Li doping kagome spin liquid compounds
Wei Jiang, Huaqing Huang, Jiawei Mei +1
Herbertsmithite and Zn-doped barlowite are two compounds for experimental realization of twodimensional gapped kagome spin liquid. Theoretically, it has been proposed that charge d…
Black Hole Horizon in a Type-III Dirac Semimetal ZnInS
Huaqing Huang, Kyung-Hwan Jin, Feng Liu
Recently, realizing new fermions, such as type-I and type-II Dirac/Weyl fermions in condensed matter systems, has attracted considerable attention. Here we show that the transition…
Topological superconducting phase in high-Tc superconductor MgB2 with Dirac-nodal-line fermions
Kyung-Hwan Jin, Huaqing Huang, Jia-Wei Mei +3
Topological superconductors are an intriguing and elusive quantum phase, characterized by topologically protected gapless surface/edge states residing in a bulk superconducting gap…