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A topological Dirac insulator in a quantum spin Hall phase

Author

Listed:
  • D. Hsieh

    (Joseph Henry Laboratories of Physics)

  • D. Qian

    (Joseph Henry Laboratories of Physics)

  • L. Wray

    (Joseph Henry Laboratories of Physics)

  • Y. Xia

    (Joseph Henry Laboratories of Physics)

  • Y. S. Hor

    (Department of Chemistry,)

  • R. J. Cava

    (Department of Chemistry,)

  • M. Z. Hasan

    (Joseph Henry Laboratories of Physics
    Princeton Center for Complex Materials, Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, USA)

Abstract

The best of both worlds Two of the hottest topics in fundamental condensed matter physics are relativistic Dirac particles and the quantum spin Hall phase. Materials that realize either one of these phenomena are scarce, but new work in bismuth-antimony crystals points to a novel state of quantum matter with both properties. Dirac particles have so far been discovered only in graphene, and the topological edge states central to the quantum spin Hall phase have yet to be directly observed. Hsieh et al. now show, through experimental observation of the simple crystal system Bi1−xSbx, that the three-dimensional generalization of both these exotic quantum phases coexist and are highly coupled. This 'topological metal' could be of interest for developing next-generation quantum computing devices.

Suggested Citation

  • D. Hsieh & D. Qian & L. Wray & Y. Xia & Y. S. Hor & R. J. Cava & M. Z. Hasan, 2008. "A topological Dirac insulator in a quantum spin Hall phase," Nature, Nature, vol. 452(7190), pages 970-974, April.
    • Handle: RePEc:nat:nature:v:452:y:2008:i:7190:d:10.1038_nature06843
    DOI: 10.1038/nature06843
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    Cited by:

    1. Zhongqiang Chen & Hongsong Qiu & Xinjuan Cheng & Jizhe Cui & Zuanming Jin & Da Tian & Xu Zhang & Kankan Xu & Ruxin Liu & Wei Niu & Liqi Zhou & Tianyu Qiu & Yequan Chen & Caihong Zhang & Xiaoxiang Xi &, 2024. "Defect-induced helicity dependent terahertz emission in Dirac semimetal PtTe2 thin films," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Nikolaj Roth & Andrew L. Goodwin, 2023. "Tuning electronic and phononic states with hidden order in disordered crystals," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Yuwei Zhao & Yue Lu & Huiping Li & Yongbin Zhu & You Meng & Na Li & Donghong Wang & Feng Jiang & Funian Mo & Changbai Long & Ying Guo & Xinliang Li & Zhaodong Huang & Qing Li & Johnny C. Ho & Jun Fan , 2022. "Few-layer bismuth selenide cathode for low-temperature quasi-solid-state aqueous zinc metal batteries," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    4. Yao Li & Xuekai Ma & Xiaokun Zhai & Meini Gao & Haitao Dai & Stefan Schumacher & Tingge Gao, 2022. "Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature," Nature Communications, Nature, vol. 13(1), pages 1-6, December.

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