961 citations · 2.1k across the 35 of their papers we have counts for
37 papers
On trace-zero norm forms of orders of rational quaternion algebras with applications
Yifan Luo, Tianze Wang, Haigang Zhou
In this paper, by normalizing the trace-zero norm forms according to the parity of orders of definite rational quaternion algebras, we give an explicit formulation to the even Clif…
Atomic-Scale Imaging of Lattice Relaxation and Topological Flat Bands in Helical Trilayer Graphene
Shudan Jiang, Zonglin Li, Yu Gu +15
Helical trilayer graphene (HTG) has emerged as a highly tunable moire quantum material that hosts strong electronic correlations and nontrivial band topology. However, the atomic-s…
Chiral superconductors and competing states across a Lifshitz transition in rhombohedral pentalayer graphene
Chuanqi Zheng, Cheng Xu, Chushan Li +19
Rhombohedral multilayer graphene hosts a distinctive low-energy electronic structure in which strong Coulomb interactions and nontrivial quantum geometry intertwine to generate exo…
Supercurrent effect in a charge density wave intertwined superconductor
Zhen Zhu, Wei Cheng, Dang Liu +15
The energy-momentum (E-k) dispersion of quasiparticles constitutes a fundamental concept in condensed matter systems. The ability to modify the E-k dispersion, exemplified by super…
Multiple Superconducting Phases in Rhombohedral Heptalayer Graphene
Chuanqi Zheng, Chushan Li, Chenyu Zhang +14
Crystalline rhombohedral multilayer graphene (RMG) has emerged as an ideal platform for studying unconventional superconductivity. Here, we report the observation of superconductiv…
Tunable high-Chern-number Chern insulators in rhombohedral tetralayer graphene/hBN moiré superlattices
Chuanqi Zheng, Chushan Li, Ke Huang +17
Moiré superlattices based on rhombohedral multilayer graphene have emerged as a highly tunable platform for engineering correlated topological phases. Here, we systematically inves…
Symplectic connection third-order Hall effect in a room-temperature ferromagnet
Yu Cao, Xukun Feng, Yiming Guo +18
Third-order nonlinear Hall effects (THE) have recently attracted considerable experimental interest as powerful probes for quantum geometric properties in emergent quantum material…
Quantum Spin-1/2 Rings Built from [2]Triangulene Molecular Units
Can Li, Manish Kumar, Ying Wang +14
Quantum spin rings represent fundamental model systems that exhibit distinctive quantum phenomena-such as quantum critical behavior and quasiparticle excitations-arising from their…
Interplay of Quantum Size Effect and Tensile Strain on Surface Morphology of Sn(100) Islands
Bing Xia, Xiaoyin Li, Hongyuan Chen +16
The quantum size effect (QSE) and strain effect are two key factors influencing the surface morphology of thin films, which can increase film surface roughness through QSE-induced…
Coexistence of unconventional spin-orbit torque and in-plane Hall effect in a single ferromagnetic layer
Jiaxin Chen, Hongsheng Zheng, Hongliang Chen +18
The symmetry of a material fundamentally governs its spin transport properties. While unconventional spin transport phenomena have been predominantly explored in low-symmetry syste…
Fabrication and Characterization of the Moiré surface state on a topological insulator
Yi Zhang, Dang Liu, Qiaoyan Yu +19
A Moire superlattice on the topological insulator surface is predicted to exhibit many novel properties but has not been experimentally realized. Here, we developed a two-step grow…
Quantum-size effect induced Andreev bound states in ultrathin metallic islands proximitized by a superconductor
Guanyong Wang, Li-Shuo Liu, Zhen Zhu +9
While Andreev bound states (ABSs) have been realized in engineered superconducting junctions, their direct observation in normal metal/superconductor heterostructures-enabled by qu…
Stacking-orientation and twist-angle control on integer and fractional Chern insulators in moiré rhombohedral graphene
Chushan Li, Chuanqi Zheng, Kai Liu +24
Rhombohedral-stacked multilayer graphene aligned with hexagonal boron nitride has emerged as an excellent platform for investigating exotic quantum phenomena arising from the inter…
Real-space study of zero-field correlation in tetralayer rhombohedral graphene
Yufeng Liu, Zonglin Li, Shudan Jiang +19
Rhombohedral graphene (RG) has emerged as a promising platform for exploring exotic quantum phenomena, such as quantum magnetism, unconventional superconductivity, and fractional q…
Topological surface state dominated nonlinear transverse response and microwave rectification at room temperature
Qia Shen, Jiaxin Chen, Bin Rong +18
Nonlinear Hall effect (NLHE) offers a novel means of uncovering symmetry and topological properties in quantum materials, holding promise for exotic (opto)electronic applications s…
Tunable topological edge states in black phosphorus-like Bi(110)
Chen Liu, Shengdan Tao, Guanyong Wang +12
We have investigated the structures and electronic properties of ultra-thin Bi(110) films grown on an s-wave superconductor substrate using low-temperature scanning tunneling micro…
Atomic-Scale Imaging of Fractional Spinon Quasiparticles in Open-Shell Triangulene Spin- Chains
Zhangyu Yuan, Xin-Yu Zhang, Yashi Jiang +14
The emergence of spinon quasiparticles, which carry spin but lack charge, is a hallmark of collective quantum phenomena in low-dimensional quantum spin systems. While the existence…
Imaging moiré flat bands and Wigner molecular crystals in twisted bilayer MoTe2
Yufeng Liu, Yu Gu, Ting Bao +16
Two-dimensional semiconducting moiré materials have emerged as a highly tunable platform for exploring novel quantum phenomena. Recently, tMoTe2 has attracted significant attention…
Topological edge and corner states in Bi fractals on InSb
R. Canyellas, Chen Liu, R. Arouca +10
Topological materials hosting metallic edges characterized by integer quantized conductivity in an insulating bulk have revolutionized our understanding of transport in matter. The…
Observation of magnetism induced topological edge state in antiferromagnetic topological insulator MnBi4Te7
HaoKe Xu, Mingqiang Gu, Fucong Fei +16
Breaking time reversal symmetry in a topological insulator may lead to quantum anomalous Hall effect and axion insulator phase. MnBi4Te7 is a recently discovered antiferromagnetic…
Quantum phase transition in magnetic nanographenes on a lead superconductor
Yu Liu, Can Li, Fu-Hua Xue +14
Quantum spins, referred to the spin operator preserved by full SU(2) symmetry in the absence of the magnetic anistropy, have been proposed to host exotic interactions with supercon…
Topological Defects Induced High-Spin Quartet State in Truxene-Based Molecular Graphenoids
Can Li, Yu Liu, Yufeng Liu +9
Topological defects in graphene materials introduce exotic properties which are absent in their defect-free counterparts with both fundamental importance and technological implicat…
Stripe order in the doped Hubbard model on the honeycomb lattice
Xu Yang, Hao Zheng, Mingpu Qin
We study the ground state properties of the doped Hubbard model with strong interactions on honeycomb lattice by the Density Matrix Renormalization Group (DMRG) method. At half-fil…
Inherited Weak Topological Insulator Signatures in Topological Hourglass Semimetal Nb3XTe6 (X = Si, Ge)
Q. Wan, T. Y. Yang, S. Li +17
Using spin-resolved and angle-resolved photoemission spectroscopy and first-principles calculations, we have identified bulk band inversion and spin polarized surface state evolved…