In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices

K. Li, C. Zhang, Y. Wu, W. Lin, X. Zheng, Y. Zhou, S. Lu, J. Kang

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Abstract

We report an experimental observation and direct control of quantum transport in artificial two-dimensional Au lattices. Combining the advanced techniques of low-temperature deposition and newly developed double-probe scanning tunneling spectroscopy, we display a two-dimensional carrier transport and demonstrate a strong in-plane transport modulation in the two-dimensional Au lattices. In well-ordered Au lattices, we observe the carrier transport behavior manifesting as a band-like feature with an energy gap. Furthermore, controlled structural modification performed by constructing coupled “stadiums” enables a transition of system dynamics in the lattices, which in turn establishes tunable resonant transport throughout a wide energy range. Our findings open the possibility of the construction and transport engineering of artificial lattices by the geometrical arrangement of scatterers and quantum chaotic dynamics.
Original languageEnglish
Pages (from-to)1724–1732
Number of pages9
JournalNano Letters
Volume18
Issue number3
DOIs
Publication statusPublished - 14 Mar 2018

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Keywords

  • Anisotropy
  • Artificial lattices
  • In-plane transport
  • Quantum chaotic scattering
  • Scanning tunneling microscopy
  • Two-dimensional material
  • in-plane transport
  • artificial lattices
  • quantum chaotic scattering
  • anisotropy
  • two-dimensional material
  • in plane transport

Cite this

Li, K., Zhang, C., Wu, Y., Lin, W., Zheng, X., Zhou, Y., ... Kang, J. (2018). In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices. Nano Letters, 18(3), 1724–1732. https://doi.org/10.1021/acs.nanolett.7b04783