Your browser doesn't support javascript.
loading
Observation of Electronic Nematicity Driven by the Three-Dimensional Charge Density Wave in Kagome Lattice KV3Sb5.
Jiang, Zhicheng; Ma, Haiyang; Xia, Wei; Liu, Zhengtai; Xiao, Qian; Liu, Zhonghao; Yang, Yichen; Ding, Jianyang; Huang, Zhe; Liu, Jiayu; Qiao, Yuxi; Liu, Jishan; Peng, Yingying; Cho, Soohyun; Guo, Yanfeng; Liu, Jianpeng; Shen, Dawei.
Affiliation
  • Jiang Z; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
  • Ma H; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Xia W; School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China.
  • Liu Z; ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, 201210 Shanghai, China.
  • Xiao Q; School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China.
  • Liu Z; ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, 201210 Shanghai, China.
  • Yang Y; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
  • Ding J; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Huang Z; International Center for Quantum Materials, School of Physics, Peking University, 100871 Beijing, China.
  • Liu J; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
  • Qiao Y; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Liu J; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
  • Peng Y; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Cho S; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
  • Guo Y; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Liu J; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
  • Shen D; School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China.
Nano Lett ; 23(12): 5625-5633, 2023 Jun 28.
Article in En | MEDLINE | ID: mdl-37310876
Kagome superconductors AV3Sb5 (A = K, Rb, Cs) provide a fertile playground for studying intriguing phenomena, including nontrivial band topology, superconductivity, giant anomalous Hall effect, and charge density wave (CDW). Recently, a C2 symmetric nematic phase prior to the superconducting state in AV3Sb5 drew enormous attention due to its potential inheritance of the symmetry of the unusual superconductivity. However, direct evidence of the rotation symmetry breaking of the electronic structure in the CDW state from the reciprocal space is still rare, and the underlying mechanism remains ambiguous. The observation shows unconventional unidirectionality, indicative of rotation symmetry breaking from six-fold to two-fold. The interlayer coupling between adjacent planes with π-phase offset in the 2 × 2 × 2 CDW phase leads to the preferred two-fold symmetric electronic structure. These rarely observed unidirectional back-folded bands in KV3Sb5 may provide important insights into its peculiar charge order and superconductivity.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nano Lett Year: 2023 Document type: Article Affiliation country: China Country of publication: Estados Unidos

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nano Lett Year: 2023 Document type: Article Affiliation country: China Country of publication: Estados Unidos