典型文献
Acoustic higher-order topology derived from first-order with built-in Zeeman-like fields
文献摘要：
Higher-order topological insulators (HOTIs),with topological corner or hinge states,have emerged as a thriving topic in the field of topological physics.However,few connections have been found for HOTIs with well-explored first-order topological insulators.Recently a proposal asserted that a significant bridge can be established between the HOTIs and Z2 topological insulators.When subjected to an in-plane Zeeman field,corner states,the signature of the HOTIs,can be induced in a Z2 topological insulator.Such Zeeman fields can be produced,for example,by the ferromagnetic proximity effect or magnetic atom doping,which drastically increases the experimental complexity.Here,we show that a phononic crystal,designed as a bilayer of coupled acoustic cavities,exactly hosts the Kane-Mele model with built-in in-plane Zeeman fields.The helical edge states along the zigzag edges are gapped,and the corner states,localized spatially at the corners of the samples,appear in the gap.This verifies the Zeeman field induced higher-order topology.We further demonstrate the intriguing contrast properties of the corner states at the outer and inner corners in a hexagonal ring-shaped sample.
文献关键词：
中图分类号：
作者姓名：
Xueqin Huang;Jiuyang Lu;Zhongbo Yan;Mou Yan;Weiyin Deng;Gang Chen;Zhengyou Liu
作者机构：
School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510640,China;School of Physics,Sun Yat-Sen University,Guangzhou 510275,China;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China;Key Laboratory of Artificial Micro-and Nanostructures of Ministry of Education and School of Physics and Technology,Wuhan University,Wuhan 430072,China;Institute for Advanced Studies,Wuhan University,Wuhan 430072,China
文献出处：
引用格式：
[1]Xueqin Huang;Jiuyang Lu;Zhongbo Yan;Mou Yan;Weiyin Deng;Gang Chen;Zhengyou Liu-.Acoustic higher-order topology derived from first-order with built-in Zeeman-like fields)[J].科学通报（英文版）,2022(05):488-494
A类：
HOTIs,asserted
B类：
Acoustic,higher,order,topology,derived,from,first,built,Zeeman,like,fields,Higher,topological,insulators,hinge,states,have,emerged,thriving,topic,physics,However,few,connections,been,found,well,explored,Recently,proposal,that,significant,bridge,established,between,Z2,When,subjected,plane,signature,induced,Such,produced,example,by,ferromagnetic,proximity,effect,atom,doping,which,drastically,increases,experimental,complexity,Here,show,phononic,crystal,designed,bilayer,coupled,acoustic,cavities,exactly,hosts,Kane,Mele,model,helical,along,zigzag,edges,are,gapped,localized,spatially,corners,samples,appear,This,verifies,We,further,demonstrate,intriguing,contrast,properties,outer,inner,hexagonal,ring,shaped
AB值：
0.536604
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
