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The Kagome material $A{\mathrm{V}}_3{\mathrm{Sb}}_5$ ($A$ = K, Rb, Cs) with geometry frustration hosts non-trivial topological electronic structures, electronic nematicity, charge density wave (CDW) and superconductivity, providing an ideal…

Superconductivity · Physics 2023-07-07 Qian Xiao , Qizhi Li , Jinjin Liu , Yongkai Li , Wei Xia , Xiquan Zheng , Yanfeng Guo , Yugui Yao , Zhiwei Wang , Yingying Peng

Kagome system usually attracts great interest in condensed matter physics due to its unique structure hosting various exotic states such as superconductivity (SC), charge density wave (CDW), and nontrivial topological states. Topological…

Strongly Correlated Electrons · Physics 2024-11-21 Zixian Dong , Lei Shi , Bing Wang , Mengwu Huo , Xing Hua , Chaoxin Huang , Peiyue Ma , Yunwei Zhang , Bing Shen , Meng Wang

The superconductivity of a kagome superconductor CsV3Sb5 is studied by scanning tunneling microscopy / spectroscopy at an ultralow temperature with high resolution. Two kinds of superconducting gaps with multiple sets of coherent peaks and…

Superconductivity · Physics 2021-11-10 Han-Shu Xu , Ya-Jun Yan , Ruotong Yin , Wei Xia , Shijie Fang , Ziyuan Chen , Yuanji Li , Wenqi Yang , Yanfeng Guo , Dong-Lai Feng

The kagome metals AV$_3$Sb$_5$ (A=K,Rb,Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the microscopic nature of these…

The recent discovery of the $A$V$_3$Sb$_5$ ($A=$ K, Rb, Cs) material family offers an exciting opportunity to investigate the interplay of correlations, topology, and superconductivity in kagome metals. The low energy physics of these…

Strongly Correlated Electrons · Physics 2022-12-15 Noah Ratcliff , Lily Hallett , Brenden R. Ortiz , Stephen D. Wilson , John W. Harter

The recently discovered kagome materials $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs) attract intense research interest in intertwined topology, superconductivity, and charge density waves (CDW). Although the in-plane $2\times2$ CDW is well studied,…

Strongly Correlated Electrons · Physics 2023-07-31 Hengxin Tan , Yongkang Li , Yizhou Liu , Daniel Kaplan , Ziqiang Wang , Binghai Yan

The kagome metal CsV$_{3}$Sb$_{5}$ features an unusual competition between the charge-density-wave (CDW) order and superconductivity. Evidence for time-reversal symmetry breaking (TRSB) inside the CDW phase has been accumulating. Hence, the…

The recently discovered coexistence of superconductivity and charge density wave order in the kagome systems AV3Sb5 (A = K, Rb, Cs) has stimulated enormous interest. According to theory, a vanadium-based kagome system may host a flat band,…

The kagome lattice, with its inherent frustration, hosts a plethora of exotic phenomena, including the emergence of $3\mathbf{q}$ charge density wave order. The high rotational symmetry, required to realize such an unconventional charge…

Exotic quantum order in kagome metals, i.e., quantum materials with a Fermi liquid parent state of electrons on a kagome lattice, has appeared as a vibrant emerging field of condensed matter physics. Already in a small kagome material…

Strongly Correlated Electrons · Physics 2024-11-06 Francesco Grandi , Ronny Thomale , Dante M. Kennes

In condensed matter physics, materials with kagome lattice display a range of exotic quantum states, including charge density wave (CDW), superconductivity and magnetism. Recently, the intermetallic kagome metal ScV6Sn6 was discovered to…

Strongly Correlated Electrons · Physics 2023-04-11 Tianchen Hu , Hanqi Pi , Shuxiang Xu , Li Yue , Qiong Wu , Qiaomei Liu , Sijie Zhang , Rongsheng Li , Xinyu Zhou , Jiayu Yuan , Dong Wu , Tao Dong , Hongming Weng , Nanlin Wang

The recently discovered kagome superconductors offer a promising platform for investigating intertwined orders and novel states, including topology, superconductivity, charge density waves, and more. The interplay among these orders can…

Kagome superconductors AV$_{3}$Sb$_{5}$ provide a unique platform for studying the interplay between a variety of electronic orders, including superconductivity, charge density waves, nematic phases and more. Understanding the evolution of…

The recently discovered kagome superconductors $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs) possess a unique band structure with van Hove singularities and Dirac dispersions, in which unusual charge-density-wave (CDW) orders with time-reversal and…

The vanadium-based kagome metals $A$V$_3$Sb$_5$ ($A$ = K, Rb, and Cs) host a superconducting ground state that coexists with an unconventional charge density wave (CDW). The CDW state exhibits experimental signatures of chirality,…

Superconductivity · Physics 2025-01-15 Yuwei Zhou , Ge Ye , Shuaishuai Luo , Yu Song , Xin Lu , Huiqiu Yuan

We report a temperature dependent x-ray diffraction study of the electronic ordering instabilities in the kagome material CsV$_3$Sb$_5$. Our measurements between 10 K and 120 K reveal an unexpected reorganization of the three-dimensional…

Strongly Correlated Electrons · Physics 2022-05-26 Q. Stahl , D. Chen , T. Ritschel , C. Shekhar , C. Felser , J. Geck

Kagome metals have emerged as a frontier in condensed matter physics due to their potential to host exotic quantum states. Among these, CsV3Sb5 has attracted significant attention for the unusual coexistence of charge density wave (CDW)…

The multiband kagome superconductor CsV3Sb5 exhibits complex orbital textures on the Fermi surface, making the orbital origins of its cascade of correlated electronic states and superconductivity a major scientific puzzle. Chemical doping…

The interplay among frustrated lattice geometry, nontrivial band topology and correlation yields rich quantum states of matter in Kagome systems. A series of recent members in this family, AV3Sb5 (A= K, Rb, Cs), exhibit a cascade of…

Nematic order refers to the spontaneous breaking of rotational symmetry while preserving translational symmetry. First identified in classical liquid crystals, nematic order arises from the collective alignment of anisotropic molecules. Its…