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Collapse of layer dimerization in the photo-induced hidden state of 1T-TaS2

Author

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  • Quirin Stahl

    (Institut für Festkörper- und Materialphysik, Technische Universität Dresden)

  • Maximilian Kusch

    (Institut für Festkörper- und Materialphysik, Technische Universität Dresden)

  • Florian Heinsch

    (Institut für Festkörper- und Materialphysik, Technische Universität Dresden
    Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf)

  • Gaston Garbarino

    (ESRF, The European Synchrotron)

  • Norman Kretzschmar

    (ESRF, The European Synchrotron)

  • Kerstin Hanff

    (Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel)

  • Kai Rossnagel

    (Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel
    Ruprecht-Haensel-Labor, Christian-Albrechts-Universität zu Kiel und Deutsches Elektronen-Synchrotron DESY
    Deutsches Elektronen-Synchrotron DESY)

  • Jochen Geck

    (Institut für Festkörper- und Materialphysik, Technische Universität Dresden
    Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität Dresden)

  • Tobias Ritschel

    (Institut für Festkörper- und Materialphysik, Technische Universität Dresden)

Abstract

Photo-induced switching between collective quantum states of matter is a fascinating rising field with exciting opportunities for novel technologies. Presently, very intensively studied examples in this regard are nanometer-thick single crystals of the layered material 1T-TaS2, where picosecond laser pulses can trigger a fully reversible insulator-to-metal transition (IMT). This IMT is believed to be connected to the switching between metastable collective quantum states, but the microscopic nature of this so-called hidden quantum state remained largely elusive up to now. Here, we characterize the hidden quantum state of 1T-TaS2 by means of state-of-the-art x-ray diffraction and show that the laser-driven IMT involves a marked rearrangement of the charge and orbital order in the direction perpendicular to the TaS2-layers. More specifically, we identify the collapse of interlayer molecular orbital dimers as a key mechanism for this non-thermal collective transition between two truly long-range ordered electronic crystals.

Suggested Citation

  • Quirin Stahl & Maximilian Kusch & Florian Heinsch & Gaston Garbarino & Norman Kretzschmar & Kerstin Hanff & Kai Rossnagel & Jochen Geck & Tobias Ritschel, 2020. "Collapse of layer dimerization in the photo-induced hidden state of 1T-TaS2," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15079-1
    DOI: 10.1038/s41467-020-15079-1
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    Cited by:

    1. Samra Husremović & Berit H. Goodge & Matthew P. Erodici & Katherine Inzani & Alberto Mier & Stephanie M. Ribet & Karen C. Bustillo & Takashi Taniguchi & Kenji Watanabe & Colin Ophus & Sinéad M. Griffi, 2023. "Encoding multistate charge order and chirality in endotaxial heterostructures," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Yihao Wang & Zhihao Li & Xuan Luo & Jingjing Gao & Yuyan Han & Jialiang Jiang & Jin Tang & Huanxin Ju & Tongrui Li & Run Lv & Shengtao Cui & Yingguo Yang & Yuping Sun & Junfa Zhu & Xingyu Gao & Wenjia, 2024. "Dualistic insulator states in 1T-TaS2 crystals," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Anze Mraz & Michele Diego & Andrej Kranjec & Jaka Vodeb & Peter Karpov & Yaroslav Gerasimenko & Jan Ravnik & Yevhenii Vaskivskyi & Rok Venturini & Viktor Kabanov & Benjamin Lipovšek & Marko Topič & Ig, 2023. "Manipulation of fractionalized charge in the metastable topologically entangled state of a doped Wigner crystal," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Seyeong Cha & Giyeok Lee & Sol Lee & Sae Hee Ryu & Yeongsup Sohn & Gijeong An & Changmo Kang & Minsu Kim & Kwanpyo Kim & Aloysius Soon & Keun Su Kim, 2023. "Order-disorder phase transition driven by interlayer sliding in lead iodides," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    5. Yun Cheng & Alfred Zong & Jun Li & Wei Xia & Shaofeng Duan & Wenxuan Zhao & Yidian Li & Fengfeng Qi & Jun Wu & Lingrong Zhao & Pengfei Zhu & Xiao Zou & Tao Jiang & Yanfeng Guo & Lexian Yang & Dong Qia, 2022. "Light-induced dimension crossover dictated by excitonic correlations," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    6. Suk Hyun Sung & Nishkarsh Agarwal & Ismail El Baggari & Patrick Kezer & Yin Min Goh & Noah Schnitzer & Jeremy M. Shen & Tony Chiang & Yu Liu & Wenjian Lu & Yuping Sun & Lena F. Kourkoutis & John T. He, 2024. "Endotaxial stabilization of 2D charge density waves with long-range order," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    7. Sung-Hoon Lee & Doohee Cho, 2023. "Charge density wave surface reconstruction in a van der Waals layered material," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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