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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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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-20DC-B Version Permalink: https://hdl.handle.net/21.11116/0000-000B-F4D1-5
Genre: Journal Article

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PhysRevLett.128.026406.pdf (Publisher version), 2MB
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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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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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 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: Issued
 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)
Project name : We thank S. Kubala and M. Krenz (Fritz-Haber-Institut, Berlin) for technical support. This work was funded by the Max Planck Society, the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant No. ERC-2015-CoG-682843), the German Research Foundation (DFG) within the Emmy Noether program (Grant No. RE 3977/1 and SE 2558/2), Alexander von Humboldt Foundation (Feodor Lynen scholarship), and the DFG research unit FOR 1700. Crystal growth and characterization at Stanford University (P. W. and I. R. F.) was supported by the Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. Y. W. W., L. R., M. P., and C. W. N. carried out the trARPES experiments; P. W. and I. R. F. provided the samples; J. M. analyzed the data; M. Sc. performed the simulations, with guidance from M. Se.; J. M. and M. Sc. wrote the manuscript with support from L. R. and M. Se.; M. W., R. E. and L. R. provided the research infrastructure; all authors commented on the paper. The authors declare that they have no competing financial interests.
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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