Two-fold symmetric superconductivity in the Kagome superconductor RbV3Sb5

Wang，Shuo1,2,3; Fang，Jing Zhi1,2; Wu，Ze Nan1,2; Lu，Sirong1,2,3; Wei，Zhongming4,5; Wang，Zhiwei6,7; Huang，Wen1,2,3; Yao，Yugui6,7; Yang，Jia Jie1,2; Chen，Tingyong1,2,3; Lin，Ben Chuan1,2,3; Yu，Dapeng1,2,3

2024-12-01

10.1038/s42005-023-01496-3

Communications Physics   影响因子和分区

2399-3650

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 spontaneously break rotational symmetry, giving rise to exotic phenomena such as nematicity or even nematic superconductivity. Here we present our findings on the two-fold symmetric superconductivity in thin-flake RbVSb in response to direction-dependent in-plane magnetic fields, in contrast to the inherent six-fold structural symmetry of the crystal lattice. The two-fold symmetry was evidenced through a combination of magnetoresistance transport experiments, critical magnetic field measurements, and observations of anisotropic superconducting gaps. Additionally, by altering the experimental configuration, we also detected the presence of six-fold symmetric components superimposed on the two-fold symmetry at the boundary between normal and superconducting states. Our results underscore the correlation-driven symmetry-breaking phenomena and emphasize the potential of this correlated kagome family as a promising platform for investigating intertwined orders, including unconventional superconductivity.

SCI

英语

第一

2-s2.0-85181398063

Scopus

1.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.International Quantum Academy,Shenzhen,China
3.Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,China
4.State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing,China
5.Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing,China
6.Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement,Ministry of Education,School of Physics,Beijing Institute of Technology,Beijing,China
7.Micronano Center,Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems,Beijing Institute of Technology,Beijing,China

Wang，Shuo,Fang，Jing Zhi,Wu，Ze Nan,et al. Two-fold symmetric superconductivity in the Kagome superconductor RbV3Sb5[J]. Communications Physics,2024,7(1).

Wang，Shuo.,Fang，Jing Zhi.,Wu，Ze Nan.,Lu，Sirong.,Wei，Zhongming.,...&Yu，Dapeng.(2024).Two-fold symmetric superconductivity in the Kagome superconductor RbV3Sb5.Communications Physics,7(1).

Wang，Shuo,et al."Two-fold symmetric superconductivity in the Kagome superconductor RbV3Sb5".Communications Physics 7.1(2024).