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19962026
most citedWavefront Modulation and Subwavelength Diffractive Acoustics with an Acoustic Metasurface

922 citations

Showing 2019 · cond-mat.mes-hallShow all

24 papers · 2 filters

cond-mat.mes-hall2019★ 68 cited

Twisted quadrupole topological photonic crystals

Xiaoxi Zhou, Zhi-Kang Lin, Weixin Lu +3

Topological manipulation of waves is at the heart of the cutting-edge metamaterial researches. Quadrupole topological insulators were recently discovered in two-dimensional (2D) fl…

cond-mat.mes-hall2019★ 9 cited

Energy cooperation in quantum thermoelectric systems with multiple electric currents

Yefeng Liu, Jincheng Lu, Rongqian Wang +2

The energy efficiency and power of a quantum thermoelectric system with multiple electric currents and only one heat currents are studied. The system is connected to the hot heat b…

cond-mat.mes-hall2019★ 26 cited

Hinged Quantum Spin-Hall Effect in Antiferromagnetic Topological Insulators

Yue-Ran Ding, Dong-Hui Xu, Chui-Zhen Chen +1

In this work, we predict a hinged quantum spin-Hall (HQSH) effect featured by a pair of helical hinge modes in antiferromagnetic (AFM) topological insulator (TI) multilayers. This…

cond-mat.mes-hall2019★ 45 cited

Two-dimensional metals for piezotronics devices based on Berry curvature dipole

Xiao Rui-Chun, Shao Ding-Fu, Zhang Zhi-Qiang +1

Piezotronics is an emerging field, which exploits strain to control the transport properties in condensed matters. At present, piezotronics research majorly focuses on insulators w…

cond-mat.mes-hall2019★ 131 cited

Evidence of Higher Order Topology in Multilayer WTe from Josephson Coupling through Anisotropic Hinge States

Yong-Bin Choi, Yingming Xie, Chui-Zhen Chen +12

The noncentrosymmetric Td-WTe, previously known as a type-II Weyl semimetal, is expected to have higher order topological phases with topologically protected, helical one-dimen…

cond-mat.mes-hall2019★ 23 cited

Fully spin-polarized quadratic non-Dirac bands realized quantum anomalous Hall effect

Ping Li, Tian-Yi Cai

The quantum anomalous Hall effect is a intriguing quantum state which exhibits the chiral edge states in the absence of magnetic field. While the search for quantum anomalous Hall…

cond-mat.mes-hall2019★ 34 cited

Scaling Behavior of the Quantum Phase Transition from a Quantum Anomalous Hall Insulator to an Axion Insulator

Xinyu Wu, Di Xiao, Chui-Zhen Chen +7

The phase transitions from one plateau to the next plateau or to an insulator in quantum Hall and quantum anomalous Hall (QAH) systems have revealed universal scaling behaviors. A…

cond-mat.mes-hall2019★ 8 cited

Majorana zero modes by engineering topological kink states in two dimensional electron gas

Shu-guang Cheng, Jie Liu, Haiwen Liu +3

Majorana zero modes (MZMs)--bearing potential applications for topological quantum computing--are verified in quasi-one-dimensional (1D) Fermion systems, including semiconductor na…

cond-mat.mes-hall2019★ 32 cited

Relativistic Artificial Molecules Realized by Two Coupled Graphene Quantum Dots

Zhong-Qiu Fu, Yue-Ting Pan, Jiao-Jiao Zhou +6

Coupled quantum dots (QDs), usually referred to as artificial molecules, are important not only in exploring fundamental physics of coupled quantum objects, but also in realizing a…

cond-mat.mes-hall2019★ 38 cited

Deterministic scheme for two-dimensional type-II Dirac points and experimental realization in acoustics

Xiaoxiao Wu, Xin Li, Ruo-Yang Zhang +7

Low-energy electrons near Dirac/Weyl nodal points mimic massless relativistic fermions. However, as they are not constrained by Lorentz invariance, they can exhibit tipped-over typ…

cond-mat.mes-hall2019★ 167 cited

Dimensional hierarchy of higher-order topology in three-dimensional sonic crystals

Xiujuan Zhang, Bi-Ye Xie, Hong-Fei Wang +5

Topological phases of matter have been extensively studied for their intriguing bulk and edge properties. Recently, higher-order topological insulators with boundary states that ar…

cond-mat.mes-hall2019★ 225 cited

Influence of Boundaries and Thermostatting on Nonequilibrium Molecular Dynamics Simulations of Heat Conduction in Solids

Zhen Li, Shiyun Xiong, Charles Sievers +7

Nonequilibrium molecular dynamics (NEMD) has been extensively used to study thermal transport at various length scales in many materials. In this method, two local thermostats at d…

cond-mat.mes-hall2019★ 20 cited

Optimal efficiency and power and their trade-off in three-terminal quantum thermoelectric engines with two output electric currents

Jincheng Lu, Yefeng Liu, Rongqian Wang +2

We establish a theory of optimal efficiency and power for three-terminal thermoelectric engines which have two independent output electric currents and one input heat current. This…

cond-mat.mes-hall2019★ 82 cited

Topological flat bands in twisted trilayer graphene

Zhen Ma, Shuai Li, Ya-Wen Zheng +4

Twisted trilayer graphene (TLG) may be the simplest realistic system so far, which has flat bands with nontrivial topology. Here, we give a detailed calculation about its band stru…

cond-mat.mes-hall2019★ 9 cited

Numerical study of the negative nonlocal resistance and the backflow current in a ballistic graphene system

Zibo Wang, Haiwen Liu, Hua Jiang +1

Besides the giant peak of the nonlocal resistance , an anomalous negative value of has been observed in graphene systems, while its formation mechanism is not quit…

cond-mat.mes-hall2019★ 7 cited

Emergent Topological Invariant and Robust Helical Edge States in Two-Dimensional Topological Metals

Chui-Zhen Chen, Hua Jiang, Dong-Hui Xu +1

In this work, we study the disorder effect on topological metals that support a pair of helical edge modes deeply embedded inside the gapless bulk states. Strikingly, we predict th…

cond-mat.mes-hall2019★ 236 cited

Higher-Order Topological Insulators in Quasicrystals

Rui Chen, Chui-Zhen Chen, Jin-Hua Gao +2

Current understanding of higher-order topological insulators (HOTIs) is based primarily on crystalline materials. Here, we propose that HOTIs can be realized in quasicrystals. Spec…

cond-mat.mes-hall2019★ 16 cited

Exact zero modes in a quantum compass chain under inhomogeneous transverse fields

Ning Wu, Wen-Long You

We study the emergence of exact Majorana zero modes (EMZMs) in a one-dimensional quantum transverse compass model with both the nearest-neighbor interactions and transverse fields…

cond-mat.mes-hall2019★ 81 cited

Gapped Topological Kink States and Topological Corner States in Graphene

Yuting Yang, Ziyuan Jia, Yijia Wu +3

Based on the tight-binding model calculations and photonic experimental visualization on graphene, we report the domain-wall-induced gapped topological kink states and topological…

cond-mat.mes-hall2019★ 2 cited

Quantum to classical crossover under dephasing effects in a two-dimensional percolation model

Junjie Qi, Haiwen Liu, Chui-zhen Chen +2

Scaling theory predicts complete localization in in quantum systems belonging to orthogonal class (i.e. with time-reversal symmetry and spin-rotation symmetry). The conductan…

cond-mat.mes-hall2019★ 51 cited

Anisotropic exceptional points of arbitrary order

Yi-Xin Xiao, Zhao-Qing Zhang, Zhi Hong Hang +1

A pair of anisotropic exceptional points (EPs) of arbitrary order are found in a class of non-Hermitian random systems with asymmetric hoppings. Both eigenvalues and eigenvectors e…

cond-mat.mes-hall2019★ 232 cited

Band topology in classical waves: Wilson-loop approach to topological numbers and fragile topology

Hai-Xiao Wang, Guang-Yu Guo, Jian-Hua Jiang

The rapid development of topological photonics and acoustics calls for accurate understanding of band topology in classical waves, which is not yet achieved in many situations. Her…

cond-mat.mes-hall2019★ 30 cited

Double-frequency Aharonov-Bohm effect and non-Abelian braiding properties of Jackiw-Rebbi zero-mode

Yijia Wu, Haiwen Liu, Jie Liu +2

Ever since its first proposal in 1976, Jackiw-Rebbi zero-mode has been drawing extensive attention for its charming properties including charge fractionalization, topologically pro…

cond-mat.mes-hall2019★ 59 cited

Finite-size effects in non-Hermitian topological systems

Rui Chen, Chui-Zhen Chen, Bin Zhou +1

We systematically investigate the finite-size effects in non-Hermitian one-dimensional (1D) Su-Schrieffer-Heeger (SSH) and two-dimensional (2D) Chern insulator models. Using a comb…