Superconductivity and unconventional density waves in vanadium-based kagome materials AV_(3)Sb_(5)  

作　　者：Hui Chen Bin Hu Yuhan Ye Haitao Yang Hong-Jun Gao 陈辉;胡彬;耶郁晗;杨海涛;高鸿钧(Institute of Physics and University of Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing 100190,China;CAS Center for Excellence in Topological Quantum Computation,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China)

机构地区：[1]Institute of Physics and University of Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing 100190,China [2]CAS Center for Excellence in Topological Quantum Computation,Beijing 100190,China [3]Songshan Lake Materials Laboratory,Dongguan 523808,China

出　　处：《Chinese Physics B》2022年第9期56-75,共20页中国物理B（英文版）

基　　金：support from the Ministry of Science and Technology of China;the National Natural Science Foundation of China and Chinese Academy of Sciences

摘　　要：Recently,the discovery of vanadium-based kagome metal AV_(3)Sb_(5)(A=K,Rb,Cs)has attracted great interest in the field of superconductivity due to the coexistence of superconductivity,non-trivial surface state and multiple density waves.In this topical review,we present recent works of superconductivity and unconventional density waves in vanadium-based kagome materials AV_(3)Sb_(5).We start with the unconventional charge density waves,which are thought to correlate to the time-reversal symmetry-breaking orders and the unconventional anomalous Hall effects in AV_(3)Sb_(5).Then we discuss the superconductivity and the topological band structure.Next,we review the competition between the superconductivity and charge density waves under different conditions of pressure,chemical doping,thickness,and strains.Finally,the experimental evidence of pseudogap pair density wave is discussed.

关 键 词：kagome metal SUPERCONDUCTIVITY charge density wave pair density wave 

分 类 号：O511.3[一般工业技术—材料科学与工程]