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Showing 1–14 of 14 results
Advanced filters: Author: Jiuyang Lu Clear advanced filters

  • Topologically protected edge states can be observed when combining two Si-based phononic crystals of opposite phases, as well as on-chip elastic wave splitting via partition of edges states at the intersection of topological channels.

    • Mou Yan
    • Jiuyang Lu
    • Zhengyou Liu
    Research
    Nature Materials
    Volume: 17, P: 993-998

  • Despite long-standing theoretical predictions in graphene, observation of satellite Dirac cones surrounding a central linear cone is elusive. Here, the authors report their observation in phononic crystals by designing dominant third-nearest-neighbor couplings.

    • Han Liu
    • Yuxiang Xi
    • Zhengyou Liu
    ResearchOpen Access
    Nature Communications
    Volume: 17, P: 1-8

  • A second-order topological Weyl semimetal based on a 3D-printed acoustic crystal, exhibiting Weyl points, Fermi arc surface states, and hinge states, has been experimentally demonstrated.

    • Qiang Wei
    • Xuewei Zhang
    • Suotang Jia
    Research
    Nature Materials
    Volume: 20, P: 812-817

  • 3D topological nodal lines that give rise to drumhead surface states could help study a range of exotic topological phenomena. Here, Deng et al. experimentally demonstrate 3D nodal ring dispersion and topological drumhead surface states for acoustic waves in a phononic crystal.

    • Weiyin Deng
    • Jiuyang Lu
    • Zhengyou Liu
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-6

  • In acoustic systems, quantum spin Hall physics is rarely observed because the crucial ingredient spin-orbit coupling is missing. Here, the authors construct an acoustic crystal with synthetic spin-orbit coupling and observe gapless helical boundary states as well as spin flipping effect.

    • Weiyin Deng
    • Xueqin Huang
    • Zhengyou Liu
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-7

  • Acoustic Weyl points are realized in a three-dimensional chiral phononic crystal that breaks inversion symmetry, with the topological nature of the associate surface states providing robust modes that propagate along only one direction.

    • Feng Li
    • Xueqin Huang
    • Zhengyou Liu
    Research
    Nature Physics
    Volume: 14, P: 30-34

  • Valleytronics — exploiting a system’s pseudospin degree of freedom — is being increasingly explored in sonic crystals. Now, valley transport of sound is reported for a macroscopic triangular-lattice array of rod-like scatterers in a 2D air waveguide.

    • Jiuyang Lu
    • Chunyin Qiu
    • Zhengyou Liu
    Research
    Nature Physics
    Volume: 13, P: 369-374

  • Here, the authors apply the Activity-by-Contact (ABC) model to infer enhancer-gene regulation and the effect of associated variants across multiple cancer types, integrating genetic and multi-omics data. Then, they explore the mechanisms associated with ABC regulatory variants in colorectal cancer.

    • Pingting Ying
    • Can Chen
    • Xiaoping Miao
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-20

  • Non-trivial topological phases come in various guises from first-order to higher-order and can be found in a range of systems from electronic and photonic through to phononic. Here, the authors report a variable-order topological insulator in a phononic crystal that can be tuned between first and higher orders by varying the nearest-neighbor hopping whilst at the same time preserving the symmetry.

    • Yating Yang
    • Handa Sun
    • Zhengyou Liu
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-7

  • Recent theoretical works reveal that the topologically nontrivial exceptional points can guarantee the geometry-dependent skin effect, but it remains to be confirmed by experiments. Here the authors realize a reciprocal non-Hermitian phononic crystal with exceptional points, and observe the geometry-dependent skin effect.

    • Qiuyan Zhou
    • Jien Wu
    • Zhengyou Liu
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Point gap is signature of non-Hermitian systems, but the experimental identification of nontrivial point gaps is elusive. Here, the authors use a Weyl phononic crystal to demonstrate that the point gap constituted by bulk and Fermi-arc surface states can be observed experimentally by a real-space field mapping technique and discover various skin effects and their evolutions.

    • Riyi Zheng
    • Jing Lin
    • Zhengyou Liu
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-9

  • Topological pump offers a new perspective on the construction and application of topological states. Based on higher-order topological corner pump, the authors demonstrate some interesting transport phenomena (e.g., topological splitting effect) in a 3D modulated phononic crystal with arbitrarily controllable pumping paths.

    • Zhenyu Wang
    • Liping Ye
    • Zhengyou Liu
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-7