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TOPOLOGICAL MATERIALS

Chirality meets topology

By considering the topology of chiral crystals, a new type of massless fermion, connected with giant arc-like surface states, are predicted. Such Kramers–Weyl fermions should manifest themselves in a wide variety of chiral materials.

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Correspondence to Chandra Shekhar.

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Further reading

  • Topological chiral crystals with helicoid-arc quantum states

    • Daniel S. Sanchez
    • , Ilya Belopolski
    • , Tyler A. Cochran
    • , Xitong Xu
    • , Jia-Xin Yin
    • , Guoqing Chang
    • , Weiwei Xie
    • , Kaustuv Manna
    • , Vicky Süß
    • , Cheng-Yi Huang
    • , Nasser Alidoust
    • , Daniel Multer
    • , Songtian S. Zhang
    • , Nana Shumiya
    • , Xirui Wang
    • , Guang-Qiang Wang
    • , Tay-Rong Chang
    • , Claudia Felser
    • , Su-Yang Xu
    • , Shuang Jia
    • , Hsin Lin
    •  & M. Zahid Hasan

    Nature (2019)

Fig. 1: Examples of chiral structures.
Fig. 2: Kramers–Weyl fermions.