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Zeeman splitting and dynamical mass generation in Dirac semimetal ZrTe5

Author

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  • Yanwen Liu

    (State Key Laboratory of Surface Physics, Fudan University
    Fudan University
    Collaborative Innovation Center of Advanced Microstructures)

  • Xiang Yuan

    (State Key Laboratory of Surface Physics, Fudan University
    Fudan University
    Collaborative Innovation Center of Advanced Microstructures)

  • Cheng Zhang

    (State Key Laboratory of Surface Physics, Fudan University
    Fudan University
    Collaborative Innovation Center of Advanced Microstructures)

  • Zhao Jin

    (Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology)

  • Awadhesh Narayan

    (School of Physics, AMBER and CRANN Institute, Trinity College
    University of Illinois at Urbana—Champaign)

  • Chen Luo

    (Shanghai Key Laboratory of Multidimensional Information Processing, East China Normal University)

  • Zhigang Chen

    (Materials Engineering, The University of Queensland)

  • Lei Yang

    (Materials Engineering, The University of Queensland)

  • Jin Zou

    (Materials Engineering, The University of Queensland
    Centre for Microscopy and Microanalysis, The University of Queensland)

  • Xing Wu

    (Shanghai Key Laboratory of Multidimensional Information Processing, East China Normal University)

  • Stefano Sanvito

    (School of Physics, AMBER and CRANN Institute, Trinity College)

  • Zhengcai Xia

    (Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology)

  • Liang Li

    (Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology)

  • Zhong Wang

    (Institute for Advanced Study, Tsinghua University
    Collaborative Innovation Center of Quantum Matter)

  • Faxian Xiu

    (State Key Laboratory of Surface Physics, Fudan University
    Fudan University
    Collaborative Innovation Center of Advanced Microstructures)

Abstract

Dirac semimetals have attracted extensive attentions in recent years. It has been theoretically suggested that many-body interactions may drive exotic phase transitions, spontaneously generating a Dirac mass for the nominally massless Dirac electrons. So far, signature of interaction-driven transition has been lacking. In this work, we report high-magnetic-field transport measurements of the Dirac semimetal candidate ZrTe5. Owing to the large g factor in ZrTe5, the Zeeman splitting can be observed at magnetic field as low as 3 T. Most prominently, high pulsed magnetic field up to 60 T drives the system into the ultra-quantum limit, where we observe abrupt changes in the magnetoresistance, indicating field-induced phase transitions. This is interpreted as an interaction-induced spontaneous mass generation of the Dirac fermions, which bears resemblance to the dynamical mass generation of nucleons in high-energy physics. Our work establishes Dirac semimetals as ideal platforms for investigating emerging correlation effects in topological matters.

Suggested Citation

  • 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.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12516
    DOI: 10.1038/ncomms12516
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    Cited by:

    1. S. Galeski & H. F. Legg & R. Wawrzyńczak & T. Förster & S. Zherlitsyn & D. Gorbunov & M. Uhlarz & P. M. Lozano & Q. Li & G. D. Gu & C. Felser & J. Wosnitza & T. Meng & J. Gooth, 2022. "Signatures of a magnetic-field-induced Lifshitz transition in the ultra-quantum limit of the topological semimetal ZrTe5," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. 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.
    3. Jingyue Wang & Yuxuan Jiang & Tianhao Zhao & Zhiling Dun & Anna L. Miettinen & Xiaosong Wu & Martin Mourigal & Haidong Zhou & Wei Pan & Dmitry Smirnov & Zhigang Jiang, 2021. "Magneto-transport evidence for strong topological insulator phase in ZrTe5," Nature Communications, Nature, vol. 12(1), pages 1-7, December.

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