Nature Communications (Sep 2021)

Terahertz response of monolayer and few-layer WTe2 at the nanoscale

  • Ran Jing,
  • Yinming Shao,
  • Zaiyao Fei,
  • Chiu Fan Bowen Lo,
  • Rocco A. Vitalone,
  • Francesco L. Ruta,
  • John Staunton,
  • William J.-C Zheng,
  • Alexander S. Mcleod,
  • Zhiyuan Sun,
  • Bor-yuan Jiang,
  • Xinzhong Chen,
  • Michael M. Fogler,
  • Andrew J. Millis,
  • Mengkun Liu,
  • David H. Cobden,
  • Xiaodong Xu,
  • D. N. Basov

DOI
https://doi.org/10.1038/s41467-021-23933-z
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 9

Abstract

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The behaviour of Tungsten ditelluride (WTe2) in few-layer form is not yet fully characterized. Here the authors use a near-field terahertz microscopy technique to observe the electromagnetic responses of WTe2 flakes from one to several layers and to study their semimetallic/ semiconducting behavior.