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A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class

Author

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  • Shin-Ming Huang

    (Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore
    National University of Singapore)

  • Su-Yang Xu

    (Joseph Henry Laboratory, Princeton University
    Princeton Center for Complex Materials, Princeton University)

  • Ilya Belopolski

    (Joseph Henry Laboratory, Princeton University
    Princeton Center for Complex Materials, Princeton University)

  • Chi-Cheng Lee

    (Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore
    National University of Singapore)

  • Guoqing Chang

    (Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore
    National University of Singapore)

  • BaoKai Wang

    (Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore
    National University of Singapore
    Northeastern University)

  • Nasser Alidoust

    (Joseph Henry Laboratory, Princeton University
    Princeton Center for Complex Materials, Princeton University)

  • Guang Bian

    (Joseph Henry Laboratory, Princeton University)

  • Madhab Neupane

    (Joseph Henry Laboratory, Princeton University
    Princeton Center for Complex Materials, Princeton University
    Condensed Matter and Magnet Science Group, Los Alamos National Laboratory, Los Alamos)

  • Chenglong Zhang

    (ICQM, School of Physics, Peking University)

  • Shuang Jia

    (ICQM, School of Physics, Peking University
    Collaborative Innovation Center of Quantum Matter)

  • Arun Bansil

    (Northeastern University)

  • Hsin Lin

    (Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore
    National University of Singapore)

  • M. Zahid Hasan

    (Joseph Henry Laboratory, Princeton University
    Princeton Center for Complex Materials, Princeton University
    Princeton Center for Complex Materials, Princeton University)

Abstract

Weyl fermions are massless chiral fermions that play an important role in quantum field theory but have never been observed as fundamental particles. A Weyl semimetal is an unusual crystal that hosts Weyl fermions as quasiparticle excitations and features Fermi arcs on its surface. Such a semimetal not only provides a condensed matter realization of the anomalies in quantum field theories but also demonstrates the topological classification beyond the gapped topological insulators. Here, we identify a topological Weyl semimetal state in the transition metal monopnictide materials class. Our first-principles calculations on TaAs reveal its bulk Weyl fermion cones and surface Fermi arcs. Our results show that in the TaAs-type materials the Weyl semimetal state does not depend on fine-tuning of chemical composition or magnetic order, which opens the door for the experimental realization of Weyl semimetals and Fermi arc surface states in real materials.

Suggested Citation

  • Shin-Ming Huang & Su-Yang Xu & Ilya Belopolski & Chi-Cheng Lee & Guoqing Chang & BaoKai Wang & Nasser Alidoust & Guang Bian & Madhab Neupane & Chenglong Zhang & Shuang Jia & Arun Bansil & Hsin Lin & M, 2015. "A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class," Nature Communications, Nature, vol. 6(1), pages 1-6, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8373
    DOI: 10.1038/ncomms8373
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    Cited by:

    1. Xian P. Yang & Yueh-Ting Yao & Pengyu Zheng & Shuyue Guan & Huibin Zhou & Tyler A. Cochran & Che-Min Lin & Jia-Xin Yin & Xiaoting Zhou & Zi-Jia Cheng & Zhaohu Li & Tong Shi & Md Shafayat Hossain & She, 2024. "A topological Hund nodal line antiferromagnet," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Cong Li & Jianfeng Zhang & Yang Wang & Hongxiong Liu & Qinda Guo & Emile Rienks & Wanyu Chen & Francois Bertran & Huancheng Yang & Dibya Phuyal & Hanna Fedderwitz & Balasubramanian Thiagarajan & Macie, 2023. "Emergence of Weyl fermions by ferrimagnetism in a noncentrosymmetric magnetic Weyl semimetal," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Yang-Yang Lv & Jinlong Xu & Shuang Han & Chi Zhang & Yadong Han & Jian Zhou & Shu-Hua Yao & Xiao-Ping Liu & Ming-Hui Lu & Hongming Weng & Zhenda Xie & Y. B. Chen & Jianbo Hu & Yan-Feng Chen & Shining , 2021. "High-harmonic generation in Weyl semimetal β-WP2 crystals," Nature Communications, Nature, vol. 12(1), pages 1-8, December.

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