IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v14y2023i1d10.1038_s41467-023-39620-0.html
   My bibliography  Save this article

Observation of flat band, Dirac nodal lines and topological surface states in Kagome superconductor CsTi3Bi5

Author

Listed:
  • Jiangang Yang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xinwei Yi

    (University of Chinese Academy of Sciences)

  • Zhen Zhao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yuyang Xie

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Taimin Miao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Hailan Luo

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Hao Chen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Bo Liang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Wenpei Zhu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yuhan Ye

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jing-Yang You

    (National University of Singapore)

  • Bo Gu

    (University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shenjin Zhang

    (Chinese Academy of Sciences)

  • Fengfeng Zhang

    (Chinese Academy of Sciences)

  • Feng Yang

    (Chinese Academy of Sciences)

  • Zhimin Wang

    (Chinese Academy of Sciences)

  • Qinjun Peng

    (Chinese Academy of Sciences)

  • Hanqing Mao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Songshan Lake Materials Laboratory)

  • Guodong Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Songshan Lake Materials Laboratory)

  • Zuyan Xu

    (Chinese Academy of Sciences)

  • Hui Chen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Haitao Yang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Gang Su

    (University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Hongjun Gao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Lin Zhao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Songshan Lake Materials Laboratory)

  • X. J. Zhou

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Songshan Lake Materials Laboratory)

Abstract

Kagome lattices of various transition metals are versatile platforms for achieving anomalous Hall effects, unconventional charge-density wave orders and quantum spin liquid phenomena due to the strong correlations, spin-orbit coupling and/or magnetic interactions involved in such a lattice. Here, we use laser-based angle-resolved photoemission spectroscopy in combination with density functional theory calculations to investigate the electronic structure of the newly discovered kagome superconductor CsTi3Bi5, which is isostructural to the AV3Sb5 (A = K, Rb or Cs) kagome superconductor family and possesses a two-dimensional kagome network of titanium. We directly observe a striking flat band derived from the local destructive interference of Bloch wave functions within the kagome lattice. In agreement with calculations, we identify type-II and type-III Dirac nodal lines and their momentum distribution in CsTi3Bi5 from the measured electronic structures. In addition, around the Brillouin zone centre, $${{\mathbb{Z}}}_{2}$$ Z 2 nontrivial topological surface states are also observed due to band inversion mediated by strong spin-orbit coupling.

Suggested Citation

  • Jiangang Yang & Xinwei Yi & Zhen Zhao & Yuyang Xie & Taimin Miao & Hailan Luo & Hao Chen & Bo Liang & Wenpei Zhu & Yuhan Ye & Jing-Yang You & Bo Gu & Shenjin Zhang & Fengfeng Zhang & Feng Yang & Zhimi, 2023. "Observation of flat band, Dirac nodal lines and topological surface states in Kagome superconductor CsTi3Bi5," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39620-0
    DOI: 10.1038/s41467-023-39620-0
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-023-39620-0
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/s41467-023-39620-0?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Hui Chen & Haitao Yang & Bin Hu & Zhen Zhao & Jie Yuan & Yuqing Xing & Guojian Qian & Zihao Huang & Geng Li & Yuhan Ye & Sheng Ma & Shunli Ni & Hua Zhang & Qiangwei Yin & Chunsheng Gong & Zhijun Tu & , 2021. "Roton pair density wave in a strong-coupling kagome superconductor," Nature, Nature, vol. 599(7884), pages 222-228, November.
    2. Qi Wang & Yuanfeng Xu & Rui Lou & Zhonghao Liu & Man Li & Yaobo Huang & Dawei Shen & Hongming Weng & Shancai Wang & Hechang Lei, 2018. "Author Correction: Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions," Nature Communications, Nature, vol. 9(1), pages 1-1, December.
    3. Chunyu Guo & Carsten Putzke & Sofia Konyzheva & Xiangwei Huang & Martin Gutierrez-Amigo & Ion Errea & Dong Chen & Maia G. Vergniory & Claudia Felser & Mark H. Fischer & Titus Neupert & Philip J. W. Mo, 2022. "Switchable chiral transport in charge-ordered kagome metal CsV3Sb5," Nature, Nature, vol. 611(7936), pages 461-466, November.
    4. Alexey A. Soluyanov & Dominik Gresch & Zhijun Wang & QuanSheng Wu & Matthias Troyer & Xi Dai & B. Andrei Bernevig, 2015. "Type-II Weyl semimetals," Nature, Nature, vol. 527(7579), pages 495-498, November.
    5. Lixuan Zheng & Zhimian Wu & Ye Yang & Linpeng Nie & Min Shan & Kuanglv Sun & Dianwu Song & Fanghang Yu & Jian Li & Dan Zhao & Shunjiao Li & Baolei Kang & Yanbing Zhou & Kai Liu & Ziji Xiang & Jianjun , 2022. "Emergent charge order in pressurized kagome superconductor CsV3Sb5," Nature, Nature, vol. 611(7937), pages 682-687, November.
    6. Zhonghao Liu & Man Li & Qi Wang & Guangwei Wang & Chenhaoping Wen & Kun Jiang & Xiangle Lu & Shichao Yan & Yaobo Huang & Dawei Shen & Jia-Xin Yin & Ziqiang Wang & Zhiping Yin & Hechang Lei & Shancai W, 2020. "Orbital-selective Dirac fermions and extremely flat bands in frustrated kagome-lattice metal CoSn," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    7. He Zhao & Hong Li & Brenden R. Ortiz & Samuel M. L. Teicher & Takamori Park & Mengxing Ye & Ziqiang Wang & Leon Balents & Stephen D. Wilson & Ilija Zeljkovic, 2021. "Cascade of correlated electron states in the kagome superconductor CsV3Sb5," Nature, Nature, vol. 599(7884), pages 216-221, November.
    8. Leon Balents, 2010. "Spin liquids in frustrated magnets," Nature, Nature, vol. 464(7286), pages 199-208, March.
    9. Hailan Luo & Qiang Gao & Hongxiong Liu & Yuhao Gu & Dingsong Wu & Changjiang Yi & Junjie Jia & Shilong Wu & Xiangyu Luo & Yu Xu & Lin Zhao & Qingyan Wang & Hanqing Mao & Guodong Liu & Zhihai Zhu & You, 2022. "Electronic nature of charge density wave and electron-phonon coupling in kagome superconductor KV3Sb5," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    10. Xiaokun Teng & Lebing Chen & Feng Ye & Elliott Rosenberg & Zhaoyu Liu & Jia-Xin Yin & Yu-Xiao Jiang & Ji Seop Oh & M. Zahid Hasan & Kelly J. Neubauer & Bin Gao & Yaofeng Xie & Makoto Hashimoto & Dongh, 2022. "Discovery of charge density wave in a kagome lattice antiferromagnet," Nature, Nature, vol. 609(7927), pages 490-495, September.
    11. Qi Wang & Yuanfeng Xu & Rui Lou & Zhonghao Liu & Man Li & Yaobo Huang & Dawei Shen & Hongming Weng & Shancai Wang & Hechang Lei, 2018. "Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Zhicheng Jiang & Zhengtai Liu & Haiyang Ma & Wei Xia & Zhonghao Liu & Jishan Liu & Soohyun Cho & Yichen Yang & Jianyang Ding & Jiayu Liu & Zhe Huang & Yuxi Qiao & Jiajia Shen & Wenchuan Jing & Xiangqi, 2023. "Flat bands, non-trivial band topology and rotation symmetry breaking in layered kagome-lattice RbTi3Bi5," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Asish K. Kundu & Xiong Huang & Eric Seewald & Ethan Ritz & Santanu Pakhira & Shuai Zhang & Dihao Sun & Simon Turkel & Sara Shabani & Turgut Yilmaz & Elio Vescovo & Cory R. Dean & David C. Johnston & T, 2024. "Low-energy electronic structure in the unconventional charge-ordered state of ScV6Sn6," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    2. Li Huang & Xianghua Kong & Qi Zheng & Yuqing Xing & Hui Chen & Yan Li & Zhixin Hu & Shiyu Zhu & Jingsi Qiao & Yu-Yang Zhang & Haixia Cheng & Zhihai Cheng & Xianggang Qiu & Enke Liu & Hechang Lei & Xia, 2023. "Discovery and construction of surface kagome electronic states induced by p-d electronic hybridization in Co3Sn2S2," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Zhicheng Jiang & Zhengtai Liu & Haiyang Ma & Wei Xia & Zhonghao Liu & Jishan Liu & Soohyun Cho & Yichen Yang & Jianyang Ding & Jiayu Liu & Zhe Huang & Yuxi Qiao & Jiajia Shen & Wenchuan Jing & Xiangqi, 2023. "Flat bands, non-trivial band topology and rotation symmetry breaking in layered kagome-lattice RbTi3Bi5," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Honglie Ning & Kyoung Hun Oh & Yifan Su & Alexander Hoegen & Zach Porter & Andrea Capa Salinas & Quynh L. Nguyen & Matthieu Chollet & Takahiro Sato & Vincent Esposito & Matthias C. Hoffmann & Adam Whi, 2024. "Dynamical decoding of the competition between charge density waves in a kagome superconductor," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    5. Xinjian Wei & Congkuan Tian & Hang Cui & Yuxin Zhai & Yongkai Li & Shaobo Liu & Yuanjun Song & Ya Feng & Miaoling Huang & Zhiwei Wang & Yi Liu & Qihua Xiong & Yugui Yao & X. C. Xie & Jian-Hao Chen, 2024. "Three-dimensional hidden phase probed by in-plane magnetotransport in kagome metal CsV3Sb5 thin flakes," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    6. Xianyang Lu & Zhiyong Lin & Hanqi Pi & Tan Zhang & Guanqi Li & Yuting Gong & Yu Yan & Xuezhong Ruan & Yao Li & Hui Zhang & Lin Li & Liang He & Jing Wu & Rong Zhang & Hongming Weng & Changgan Zeng & Yo, 2024. "Ultrafast magnetization enhancement via the dynamic spin-filter effect of type-II Weyl nodes in a kagome ferromagnet," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    7. Huimin Zhang & Basu Dev Oli & Qiang Zou & Xu Guo & Zhengfei Wang & Lian Li, 2023. "Visualizing symmetry-breaking electronic orders in epitaxial Kagome magnet FeSn films," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    8. Boqin Song & Tianping Ying & Xianxin Wu & Wei Xia & Qiangwei Yin & Qinghua Zhang & Yanpeng Song & Xiaofan Yang & Jiangang Guo & Lin Gu & Xiaolong Chen & Jiangping Hu & Andreas P. Schnyder & Hechang Le, 2023. "Anomalous enhancement of charge density wave in kagome superconductor CsV3Sb5 approaching the 2D limit," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    9. D. Subires & A. Korshunov & A. H. Said & L. Sánchez & Brenden R. Ortiz & Stephen D. Wilson & A. Bosak & S. Blanco-Canosa, 2023. "Order-disorder charge density wave instability in the kagome metal (Cs,Rb)V3Sb5," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    10. Yang Luo & Yulei Han & Jinjin Liu & Hui Chen & Zihao Huang & Linwei Huai & Hongyu Li & Bingqian Wang & Jianchang Shen & Shuhan Ding & Zeyu Li & Shuting Peng & Zhiyuan Wei & Yu Miao & Xiupeng Sun & Zhi, 2023. "A unique van Hove singularity in kagome superconductor CsV3-xTaxSb5 with enhanced superconductivity," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    11. A. Korshunov & H. Hu & D. Subires & Y. Jiang & D. Călugăru & X. Feng & A. Rajapitamahuni & C. Yi & S. Roychowdhury & M. G. Vergniory & J. Strempfer & C. Shekhar & E. Vescovo & D. Chernyshov & A. H. Sa, 2023. "Softening of a flat phonon mode in the kagome ScV6Sn6," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    12. Ziyuan Chen & Xueliang Wu & Shiming Zhou & Jiakang Zhang & Ruotong Yin & Yuanji Li & Mingzhe Li & Jiashuo Gong & Mingquan He & Yisheng Chai & Xiaoyuan Zhou & Yilin Wang & Aifeng Wang & Ya-Jun Yan & Do, 2024. "Discovery of a long-ranged charge order with 1/4 Ge1-dimerization in an antiferromagnetic Kagome metal," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    13. Bin Hu & Hui Chen & Yuhan Ye & Zihao Huang & Xianghe Han & Zhen Zhao & Hongqin Xiao & Xiao Lin & Haitao Yang & Ziqiang Wang & Hong-Jun Gao, 2024. "Evidence of a distinct collective mode in Kagome superconductors," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    14. J. N. Graham & C. Mielke III & D. Das & T. Morresi & V. Sazgari & A. Suter & T. Prokscha & H. Deng & R. Khasanov & S. D. Wilson & A. C. Salinas & M. M. Martins & Y. Zhong & K. Okazaki & Z. Wang & M. Z, 2024. "Depth-dependent study of time-reversal symmetry-breaking in the kagome superconductor AV3Sb5," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    15. Hangyu Zhou & Manuel dos Santos Dias & Youguang Zhang & Weisheng Zhao & Samir Lounis, 2024. "Kagomerization of transition metal monolayers induced by two-dimensional hexagonal boron nitride," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    16. Hui Chen & Yuqing Xing & Hengxin Tan & Li Huang & Qi Zheng & Zihao Huang & Xianghe Han & Bin Hu & Yuhan Ye & Yan Li & Yao Xiao & Hechang Lei & Xianggang Qiu & Enke Liu & Haitao Yang & Ziqiang Wang & B, 2024. "Atomically precise engineering of spin–orbit polarons in a kagome magnetic Weyl semimetal," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    17. Dechen Zhang & Kuan-Wen Chen & Guoxin Zheng & Fanghang Yu & Mengzhu Shi & Yuan Zhu & Aaron Chan & Kaila Jenkins & Jianjun Ying & Ziji Xiang & Xianhui Chen & Lu Li, 2024. "Large oscillatory thermal hall effect in kagome metals," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    18. Yigui Zhong & Shaozhi Li & Hongxiong Liu & Yuyang Dong & Kohei Aido & Yosuke Arai & Haoxiang Li & Weilu Zhang & Youguo Shi & Ziqiang Wang & Shik Shin & H. N. Lee & H. Miao & Takeshi Kondo & Kozo Okaza, 2023. "Testing electron–phonon coupling for the superconductivity in kagome metal CsV3Sb5," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    19. Wenbin Wu & Zeping Shi & Mykhaylo Ozerov & Yuhan Du & Yuxiang Wang & Xiao-Sheng Ni & Xianghao Meng & Xiangyu Jiang & Guangyi Wang & Congming Hao & Xinyi Wang & Pengcheng Zhang & Chunhui Pan & Haifeng , 2024. "The discovery of three-dimensional Van Hove singularity," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    20. Robin Guehne & Jonathan Noky & Changjiang Yi & Chandra Shekhar & Maia G. Vergniory & Michael Baenitz & Claudia Felser, 2024. "Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39620-0. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.