supported by the National Natural Science Foundation of China(11974076,11925408,11921004,and 12188101);the Key Project of Natural Science Foundation of Fujian Province(2021J02012);the Ministry of Science and Technology of China(2018YFA0305700);the Chinese Academy of Sciences(XDB33000000 and CAS-WX2021SF-0102);the K.C.Wong Education Foundation(GJTD-2018–01);the Key Research Project of Zhejiang Lab(2021PB0AC01);supported by the Swiss National Science Foundation(200021–196966)。
Over the decade,Dirac semimetals(DSMs)have been extensively studied[1].However,the hallmarks of DSMs are still not clear[2,3].Recently,a generalized bulk-boundary correspondence,namely higher-order bulk-hinge correspo...
the support of the National Natural Science Foundation of China(12174339);Fundamental Research Funds for the Central Universities。
Higher-order topological insulators(HOTIs)are a newly devel-oped topological phase which hosts higher-codimensional topolog-ical states with lower dimensionality localized at the“boundaries of boundaries”[1,2].There...