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Unconventional Hall response in the quantum limit of HfTe5

Author

Listed:
  • S. Galeski

    (Max Planck Institute for Chemical Physics of Solids)

  • X. Zhao

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

  • R. Wawrzyńczak

    (Max Planck Institute for Chemical Physics of Solids)

  • T. Meng

    (Technische Universität Dresden)

  • T. Förster

    (Helmholtz-Zentrum Dresden-Rossendorf)

  • P. M. Lozano

    (Stony Brook University
    Brookhaven National Laboratory)

  • S. Honnali

    (Max Planck Institute for Chemical Physics of Solids)

  • N. Lamba

    (Max Planck Institute for Chemical Physics of Solids)

  • T. Ehmcke

    (Technische Universität Dresden)

  • A. Markou

    (Max Planck Institute for Chemical Physics of Solids)

  • Q. Li.

    (Stony Brook University
    Brookhaven National Laboratory)

  • G. Gu

    (Brookhaven National Laboratory)

  • W. Zhu

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

  • J. Wosnitza

    (Helmholtz-Zentrum Dresden-Rossendorf
    Technische Universität Dresden)

  • C. Felser

    (Max Planck Institute for Chemical Physics of Solids)

  • G. F. Chen

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

  • J. Gooth

    (Max Planck Institute for Chemical Physics of Solids
    Technische Universität Dresden)

Abstract

Interacting electrons confined to their lowest Landau level in a high magnetic field can form a variety of correlated states, some of which manifest themselves in a Hall effect. Although such states have been predicted to occur in three-dimensional semimetals, a corresponding Hall response has not yet been experimentally observed. Here, we report the observation of an unconventional Hall response in the quantum limit of the bulk semimetal HfTe5, adjacent to the three-dimensional quantum Hall effect of a single electron band at low magnetic fields. The additional plateau-like feature in the Hall conductivity of the lowest Landau level is accompanied by a Shubnikov-de Haas minimum in the longitudinal electrical resistivity and its magnitude relates as 3/5 to the height of the last plateau of the three-dimensional quantum Hall effect. Our findings are consistent with strong electron-electron interactions, stabilizing an unconventional variant of the Hall effect in a three-dimensional material in the quantum limit.

Suggested Citation

  • S. Galeski & X. Zhao & R. Wawrzyńczak & T. Meng & T. Förster & P. M. Lozano & S. Honnali & N. Lamba & T. Ehmcke & A. Markou & Q. Li. & G. Gu & W. Zhu & J. Wosnitza & C. Felser & G. F. Chen & J. Gooth, 2020. "Unconventional Hall response in the quantum limit of HfTe5," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19773-y
    DOI: 10.1038/s41467-020-19773-y
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    Cited by:

    1. Jinyu Liu & Yinong Zhou & Sebastian Yepez Rodriguez & Matthew A. Delmont & Robert A. Welser & Triet Ho & Nicholas Sirica & Kaleb McClure & Paolo Vilmercati & Joseph W. Ziller & Norman Mannella & Javie, 2024. "Controllable strain-driven topological phase transition and dominant surface-state transport in HfTe5," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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