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  Coherent Modulation of Quasiparticle Scattering Rates in a Photoexcited Charge-Density-Wave System

Maklar, J., Schüler, M., Windsor, Y. W., Nicholson, C. W., Puppin, M., Walmsley, P., et al. (2022). Coherent Modulation of Quasiparticle Scattering Rates in a Photoexcited Charge-Density-Wave System. Physical Review Letters, 128(2): 026406. doi:10.1103/PhysRevLett.128.026406.

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PhysRevLett.128.026406.pdf (Publisher version), 2MB
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PhysRevLett.128.026406.pdf
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
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Supplemental_Material.pdf (Supplementary material), 8MB
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The Supplemental Material includes 4 sections: -Estimation of the experimental charge-density-wave gap; -Determination of the experimental transient lifetimes; -Details on the simulations; -Simulation of the relaxation dynamics
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https://arxiv.org/abs/2108.12323 (Preprint)
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https://doi.org/10.1103/PhysRevLett.128.026406 (Publisher version)
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 Creators:
Maklar, J.1, Author
Schüler, M.2, Author
Windsor, Y. W.1, Author
Nicholson, C. W.1, Author
Puppin, M.1, Author
Walmsley, P.2, 3, Author
Fisher, I. R.2, 3, Author
Wolf, M.1, Author
Ernstorfer, R.1, 4, Author
Sentef, M. A.5, Author              
Rettig, L.1, Author
Affiliations:
1Fritz-Haber-Institut der Max-Planck-Gesellschaft, ou_persistent22              
2Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, ou_persistent22              
3Geballe Laboratory for Advanced Materials and Department of Applied Physics, Stanford University, ou_persistent22              
4Institut für Optik und Atomare Physik, Technische Universität Berlin, ou_persistent22              
5Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              

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 Abstract: We present a complementary experimental and theoretical investigation of relaxation dynamics in the charge-density-wave (CDW) system TbTe3 after ultrafast optical excitation. Using time- and angle-resolved photoemission spectroscopy, we observe an unusual transient modulation of the relaxation rates of excited photocarriers. A detailed analysis of the electron self-energy based on a nonequilibrium Green’s function formalism reveals that the phase space of electron-electron scattering is critically modulated by the photoinduced collective CDW excitation, providing an intuitive microscopic understanding of the observed dynamics and revealing the impact of the electronic band structure on the self-energy.

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Language(s): eng - English
 Dates: 2021-08-112021-12-212022-01-142022-01-14
 Publication Status: Published in print
 Pages: -
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 Rev. Type: Peer
 Identifiers: arXiv: 2108.12323
DOI: 10.1103/PhysRevLett.128.026406
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Grant ID : 682843
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

Source 1

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 128 (2) Sequence Number: 026406 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1