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Quantum transport evidence of isolated topological nodal-line fermions

Author

Listed:
  • Hoil Kim

    (Institute for Basic Science (IBS)
    Pohang University of Science and Technology (POSTECH))

  • Jong Mok Ok

    (Institute for Basic Science (IBS)
    Pohang University of Science and Technology (POSTECH)
    Pusan National University)

  • Seyeong Cha

    (Yonsei University)

  • Bo Gyu Jang

    (Pohang University of Science and Technology (POSTECH))

  • Chang Il Kwon

    (Institute for Basic Science (IBS)
    Pohang University of Science and Technology (POSTECH))

  • Yoshimitsu Kohama

    (Institute for Solid State Physics, University of Tokyo)

  • Koichi Kindo

    (Institute for Solid State Physics, University of Tokyo)

  • Won Joon Cho

    (Material Research Center, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd)

  • Eun Sang Choi

    (National High Magnetic Field Laboratory, Florida State University)

  • Youn Jung Jo

    (Kyungpook National University)

  • Woun Kang

    (Ewha Womans University)

  • Ji Hoon Shim

    (Pohang University of Science and Technology (POSTECH))

  • Keun Su Kim

    (Yonsei University)

  • Jun Sung Kim

    (Institute for Basic Science (IBS)
    Pohang University of Science and Technology (POSTECH))

Abstract

Anomalous transport responses, dictated by the nontrivial band topology, are the key for application of topological materials to advanced electronics and spintronics. One promising platform is topological nodal-line semimetals due to their rich topology and exotic physical properties. However, their transport signatures have often been masked by the complexity in band crossings or the coexisting topologically trivial states. Here we show that, in slightly hole-doped SrAs3, the single-loop nodal-line states are well-isolated from the trivial states and entirely determine the transport responses. The characteristic torus-shaped Fermi surface and the associated encircling Berry flux of nodal-line fermions are clearly manifested by quantum oscillations of the magnetotransport properties and the quantum interference effect resulting in the two-dimensional behaviors of weak antilocalization. These unique quantum transport signatures make the isolated nodal-line fermions in SrAs3 desirable for novel devices based on their topological charge and spin transport.

Suggested Citation

  • Hoil Kim & Jong Mok Ok & Seyeong Cha & Bo Gyu Jang & Chang Il Kwon & Yoshimitsu Kohama & Koichi Kindo & Won Joon Cho & Eun Sang Choi & Youn Jung Jo & Woun Kang & Ji Hoon Shim & Keun Su Kim & Jun Sung , 2022. "Quantum transport evidence of isolated topological nodal-line fermions," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34845-x
    DOI: 10.1038/s41467-022-34845-x
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    References listed on IDEAS

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    1. Yanwen Liu & Xiang Yuan & Cheng Zhang & Zhao Jin & Awadhesh Narayan & Chen Luo & Zhigang Chen & Lei Yang & Jin Zou & Xing Wu & Stefano Sanvito & Zhengcai Xia & Liang Li & Zhong Wang & Faxian Xiu, 2016. "Zeeman splitting and dynamical mass generation in Dirac semimetal ZrTe5," Nature Communications, Nature, vol. 7(1), pages 1-9, November.
    2. Leslie M. Schoop & Mazhar N. Ali & Carola Straßer & Andreas Topp & Andrei Varykhalov & Dmitry Marchenko & Viola Duppel & Stuart S. P. Parkin & Bettina V. Lotsch & Christian R. Ast, 2016. "Dirac cone protected by non-symmorphic symmetry and three-dimensional Dirac line node in ZrSiS," Nature Communications, Nature, vol. 7(1), pages 1-7, September.
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