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

Research output: Contribution to journalLetterAcademicpeer-review

3 Citations (Scopus)

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.
LanguageEnglish
Pages1724–1732
Number of pages9
JournalNano Letters
Volume18
Issue number3
DOIs
StatePublished - 12 Feb 2018

Fingerprint

Anisotropy
Carrier transport
anisotropy
Stadiums
Dynamical systems
Energy gap
Modulation
Spectroscopy
Scanning
engineering
modulation
scanning
probes
Temperature
scattering
spectroscopy
energy

Keywords

  • Anisotropy
  • Artificial lattices
  • In-plane transport
  • Quantum chaotic scattering
  • Scanning tunneling microscopy
  • Two-dimensional material

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. DOI: 10.1021/acs.nanolett.7b04783
Li, K. ; Zhang, C. ; Wu, Y. ; Lin, W. ; Zheng, X. ; Zhou, Y. ; Lu, S. ; Kang, J./ In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices. In: Nano Letters. 2018 ; Vol. 18, No. 3. pp. 1724–1732
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Li, K, Zhang, C, Wu, Y, Lin, W, Zheng, X, Zhou, Y, Lu, S & Kang, J 2018, 'In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices' Nano Letters, vol. 18, no. 3, pp. 1724–1732. DOI: 10.1021/acs.nanolett.7b04783

In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices. / Li, K.; Zhang, C.; Wu, Y.; Lin, W.; Zheng, X.; Zhou, Y.; Lu, S.; Kang, J.

In: Nano Letters, Vol. 18, No. 3, 12.02.2018, p. 1724–1732.

Research output: Contribution to journalLetterAcademicpeer-review

TY - JOUR

T1 - In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices

AU - Li,K.

AU - Zhang,C.

AU - Wu,Y.

AU - Lin,W.

AU - Zheng,X.

AU - Zhou,Y.

AU - Lu,S.

AU - Kang,J.

PY - 2018/2/12

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N2 - 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.

AB - 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.

KW - Anisotropy

KW - Artificial lattices

KW - In-plane transport

KW - Quantum chaotic scattering

KW - Scanning tunneling microscopy

KW - Two-dimensional material

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DO - 10.1021/acs.nanolett.7b04783

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Li K, Zhang C, Wu Y, Lin W, Zheng X, Zhou Y et al. In-plane anisotropy of quantum transport in artificial two-dimensional Au lattices. Nano Letters. 2018 Feb 12;18(3):1724–1732. Available from, DOI: 10.1021/acs.nanolett.7b04783