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Collapse of long-range charge order tracked by time-resolved photoemission at high momenta

Author

Listed:
  • Timm Rohwer

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Stefan Hellmann

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Martin Wiesenmayer

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Christian Sohrt

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Ankatrin Stange

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Bartosz Slomski

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Adra Carr

    (JILA, University of Colorado and NIST)

  • Yanwei Liu

    (University of California, Berkeley, NSF ERC Extreme Ultraviolet Science and Technology
    Center for X-Ray Optics, Lawrence Berkeley National Laboratory)

  • Luis Miaja Avila

    (Center for Nano and Molecular Science, University of Texas at Austin)

  • Matthias Kalläne

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Stefan Mathias

    (JILA, University of Colorado and NIST
    University of Kaiserslautern)

  • Lutz Kipp

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Kai Rossnagel

    (Institute of Experimental and Applied Physics, University of Kiel)

  • Michael Bauer

    (Institute of Experimental and Applied Physics, University of Kiel)

Abstract

A quick look at electron states Angle-resolved photoelectron spectroscopy (ARPES) is widely used to study the electronic structure of crystalline solids such as high-temperature superconductors, topological insulators and graphene-based materials. Time-resolved ARPES has opened the door to the study of the response of such electronic features on ultrafast timescales. Now Rohwer et al. add a new dimension. Using high photon energies, they are able to study ultrafast dynamics at high momenta, at which some of the most interesting fundamental phenomena occur. Applying the technique to the charge density wave material 1T-TiSe2, they obtain stroboscopic images of the electronic band structure at high momentum and show that atomic-scale periodic long-scale order collapses on a surprisingly short timescale of 20 femtoseconds. This work reveals rapid response times in photoinduced properties that could stimulate research into new types of ultrafast switching device.

Suggested Citation

  • Timm Rohwer & Stefan Hellmann & Martin Wiesenmayer & Christian Sohrt & Ankatrin Stange & Bartosz Slomski & Adra Carr & Yanwei Liu & Luis Miaja Avila & Matthias Kalläne & Stefan Mathias & Lutz Kipp & K, 2011. "Collapse of long-range charge order tracked by time-resolved photoemission at high momenta," Nature, Nature, vol. 471(7339), pages 490-493, March.
    • Handle: RePEc:nat:nature:v:471:y:2011:i:7339:d:10.1038_nature09829
    DOI: 10.1038/nature09829
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    Cited by:

    1. Eric A. Arsenault & Yiliu Li & Birui Yang & Takashi Taniguchi & Kenji Watanabe & James C. Hone & Cory R. Dean & Xiaodong Xu & X.-Y. Zhu, 2025. "Time-domain signatures of distinct correlated insulators in a moiré superlattice," Nature Communications, Nature, vol. 16(1), pages 1-8, December.

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