Nature Communications (Jan 2021)

Observation and control of the weak topological insulator state in ZrTe5

  • Peng Zhang,
  • Ryo Noguchi,
  • Kenta Kuroda,
  • Chun Lin,
  • Kaishu Kawaguchi,
  • Koichiro Yaji,
  • Ayumi Harasawa,
  • Mikk Lippmaa,
  • Simin Nie,
  • Hongming Weng,
  • V. Kandyba,
  • A. Giampietri,
  • A. Barinov,
  • Qiang Li,
  • G. D. Gu,
  • Shik Shin,
  • Takeshi Kondo

DOI
https://doi.org/10.1038/s41467-020-20564-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

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Topological side surface, characterization of a weak topological insulator (WTI), has rarely been investigated. Here, Zhang et al. visualize a quasi-one dimensional, spin-momentum locked band on the side surface of the WTI candidate ZrTe5, and manipulate the bulk band gap by strain.