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Strong signature of electron-vibration coupling in molecules on Ag(111) triggered by tip-gated discharging

Author

Listed:
  • Chao Li

    (University of Basel)

  • Christoph Kaspar

    (University of Freiburg)

  • Ping Zhou

    (University of Bern)

  • Jung-Ching Liu

    (University of Basel)

  • Outhmane Chahib

    (University of Basel)

  • Thilo Glatzel

    (University of Basel)

  • Robert Häner

    (University of Bern)

  • Ulrich Aschauer

    (University of Bern
    University of Salzburg)

  • Silvio Decurtins

    (University of Bern)

  • Shi-Xia Liu

    (University of Bern)

  • Michael Thoss

    (University of Freiburg
    University of Freiburg)

  • Ernst Meyer

    (University of Basel)

  • Rémy Pawlak

    (University of Basel)

Abstract

Electron-vibration coupling is of critical importance for the development of molecular electronics, spintronics, and quantum technologies, as it affects transport properties and spin dynamics. The control over charge-state transitions and subsequent molecular vibrations using scanning tunneling microscopy typically requires the use of a decoupling layer. Here we show the vibronic excitations of tetrabromotetraazapyrene (TBTAP) molecules directly adsorbed on Ag(111) into an orientational glassy phase. The electron-deficient TBTAP is singly-occupied by an electron donated from the substrate, resulting in a spin 1/2 state, which is confirmed by a Kondo resonance. The TBTAP•− discharge is controlled by tip-gating and leads to a series of peaks in scanning tunneling spectroscopy. These occurrences are explained by combining a double-barrier tunneling junction with a Franck-Condon model including molecular vibrational modes. This work demonstrates that suitable precursor design enables gate-dependent vibrational excitations of molecules on a metal, thereby providing a method to investigate electron-vibration coupling in molecular assemblies without a decoupling layer.

Suggested Citation

  • Chao Li & Christoph Kaspar & Ping Zhou & Jung-Ching Liu & Outhmane Chahib & Thilo Glatzel & Robert Häner & Ulrich Aschauer & Silvio Decurtins & Shi-Xia Liu & Michael Thoss & Ernst Meyer & Rémy Pawlak, 2023. "Strong signature of electron-vibration coupling in molecules on Ag(111) triggered by tip-gated discharging," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41601-2
    DOI: 10.1038/s41467-023-41601-2
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    References listed on IDEAS

    as
    1. Fan-Fang Kong & Xiao-Jun Tian & Yang Zhang & Yun-Jie Yu & Shi-Hao Jing & Yao Zhang & Guang-Jun Tian & Yi Luo & Jin-Long Yang & Zhen-Chao Dong & J. G. Hou, 2021. "Probing intramolecular vibronic coupling through vibronic-state imaging," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. Jalmar Tschakert & Qigang Zhong & Daniel Martin-Jimenez & Jaime Carracedo-Cosme & Carlos Romero-Muñiz & Pascal Henkel & Tobias Schlöder & Sebastian Ahles & Doreen Mollenhauer & Hermann A. Wegner & Pab, 2020. "Surface-controlled reversal of the selectivity of halogen bonds," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    3. Adam Gali & Tamás Demján & Márton Vörös & Gergő Thiering & Elena Cannuccia & Andrea Marini, 2016. "Electron–vibration coupling induced renormalization in the photoemission spectrum of diamondoids," Nature Communications, Nature, vol. 7(1), pages 1-9, September.
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    Cited by:

    1. Outhmane Chahib & Yuling Yin & Jung-Ching Liu & Chao Li & Thilo Glatzel & Feng Ding & Qinghong Yuan & Ernst Meyer & Rémy Pawlak, 2024. "Probing charge redistribution at the interface of self-assembled cyclo-P5 pentamers on Ag(111)," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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