WebFractional Chern insulators (FCIs) are lattice analogues of fractional quantum Hall states that may provide a new avenue towards manipulating non-Abelian excitations. Early theoretical studies 1-7 have predicted their existence in systems with flat Chern bands and highlighted the critical role of a particular quantum geometry. WebHere, we study phonons in 2D graphyne family materials. By using first-principle calculations and topology/symmetry analysis, we find that phonons in both graphdiyne and $\gamma$ …
APS -APS March Meeting 2024 - Event - Phononic real …
WebPhononic real Chern insulator with protected corner modes in graphynes. J Zhu, W Wu, J Zhao, C Chen, Q Wang, XL Sheng, L Zhang, YX Zhao, ... Physical Review B 105 (8), 085123, 2024. 10: 2024: Symmetry-enforced nodal chain phonons. J Zhu, W Wu, J Zhao, H Chen, L Zhang, SA Yang. WebPhononic real Chern insulator with protected corner modes in graphynes Physical Review B 2024-02-15 Journal article DOI: 10.1103/PhysRevB.105.085123 Contributors : Jiaojiao Zhu; Weikang Wu; Jianzhou Zhao; Cong Chen; Qianqian Wang; Xian-Lei Sheng; Lifa Zhang; Y. X. Zhao; Shengyuan A. Yang Show more detail Source : Crossref cirice by ghost
Symmetry-enforced nodal chain phonons npj Quantum Materials
WebFeb 17, 2024 · Magnet-free passive phononic Chern insulators To study topological phases in a PZM system, we develop a numerical method to solve the master equation, assuming … WebAlso, recent research progresses on various phononic topological states are reviewed, including phononic Su-Schrieffer-Heeger-like states in 1D, quantum anomalous Hall-like states, quantum valley Hall-like states, and quantum spin Hall-like states in 2D, and phononic Weyl points, nodal lines, and topological insulators in 3D. WebJan 11, 2024 · We report the experimental realization of an acoustic Chern insulator (ACI), by using an angular-momentum-biased resonator array with the broken Lorentz reciprocity. High Q-factor resonance of the constituent rotors is leveraged to reduce the required rotation speed. ACI is a new topological acousti … diamond necklace melbourne