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| 1 | Observation of topological valley transport of sound in sonic crystals显示文摘Subject Code:A04 Supported by the National Natural Science Foundation of China,a research group from Wuhan University,led by Profs.Liu Zhengyou(刘正猷)and Qiu Chunyin(邱春印),demonstrated the topological valley transport of sound in sonic crystals,which was published in Nature Physics(2017,13:369—374). | Liu Zhengyou (刘正猷) Qiu Chunyin (邱春印) | 2017 | Science Foundation in China2017，25，2： | 7 |
| 2 | Symmetry-enforced three-dimensional Dirac phononic crystals显示文摘Dirac semimetals,the materials featuring fourfold degenerate Dirac points,are critical states of topologically distinct phases.Such gapless topological states have been accomplished by a band-inversion mechanism,in which the Dirac points can be annihilated pairwise by perturbations without changing the symmetry of the system.Here,we report an experimental observation of Dirac points that are enforced completely by the crystal symmetry using a nonsymmorphic three-dimensional phononic crystal.Intriguingly,our Dirac phononic crystal hosts four spiral topological surface states,in which the surface states of opposite helicities intersect gaplessly along certain momentum lines,as confirmed by additional surface measurements.The novel Dirac system may release new opportunities for studying elusive(pseudo)and offer a unique prototype platform for acoustic applications. | Xiangxi Cai Liping Ye Chunyin Qiu Meng Xiao Rui Yu Manzhu Ke Zhengyou Liu | 2020 | Light(Science & Applications)2020，9，1： | 2 |
| 3 | Negative-refraction imaging with two-dimensional phononic crystals显示文摘 | KE Manzhu LIU Zhengyou QIU Chunyin | 2005 | Physical Review B2005，72，06： | 1 |
| 4 | Metamaterial with simultaneously negative bulk modulus and mass density显示文摘 | DING Yiqun LIU Zhengyou QIU Chunyin | 2007 | Physical Review Letters2007，99，09： | 1 |
| 5 | Metamaterial with simultaneously negative bulk mod- ules and mass density显示文摘 | D1NG Yiqun LIU Zhengyou QIU Chunyin | 2007 | Physical Review Letters2007，99，09： | 1 |
| 6 | Metamateri- al with simultaneously negative bulk modules and mass density 显示文摘 | Ding Yiqun Liu Zhengyou Qiu Chunyin | 2007 | Physical Review Letters2007，99，09： | 1 |
| 7 | The layer multiple-scattering method for calculating transmission coefficients of 2D phononic crystals显示文摘 | Qiu Chunyin Liu Zhengyou Mei Jun Ke Manzu | 2005 | Solid State Commun2005，134，： | 1 |
| 8 | The layer multiple-scattering method for calculating transmission coefficients of 2D phononic crystals显示文摘 | Chunyin Qiu Zhengyou Liu Jun Mei | 2005 | Solid State Communications2005，134，11： | 1 |
| 9 | Quadratic Weyl points in metacrystals显示文摘The discovery of new topological states has become an important goal in the multidisciplinary fields of physics and material science [1,2]. In addition to topological insulators,topological semimetals without band gaps have been the focus of research efforts. Typical examples include Weyl and Dirac semimetals, which feature isolated 2-band and 4-band linear crossing points in their band structures. | ChunYin Qiu | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，4： | 0 |
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