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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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 Creators:
Maklar, Julian1, Author           
Schüler, M.2, Author
Windsor, Yoav William1, Author           
Nicholson, Christopher W.1, Author           
Puppin, Michele1, Author           
Walmsley, P.2, 3, Author
Fisher, I. R.2, 3, Author
Wolf, Martin1, Author           
Ernstorfer, Ralph1, 4, Author           
Sentef, M. A.5, Author
Rettig, Laurenz1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA, ou_persistent22              
3Geballe Laboratory for Advanced Materials and Department of Applied Physics, Stanford University, Stanford, CA 94305, USA, ou_persistent22              
4Institut für Optik und Atomare Physik, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany, ou_persistent22              
5Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, Luruper Chaussee 149, Geb. 99 (CFEL), 22761 Hamburg, DE, ou_1938284              

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Free keywords: Condensed Matter, Materials Science, cond-mat.mtrl-sci
 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.

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Language(s): eng - English
 Dates: 2021-08-272021-08-112021-12-212022-01-142022-01
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: arXiv: 2108.12323
DOI: 10.1103/PhysRevLett.128.026406
 Degree: -

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Project name : FLATLAND - Electron-lattice-spin correlations and many-body phenomena in 2D semiconductors and related heterostructures
Grant ID : 682843
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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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: 7 Volume / Issue: 128 (2) Sequence Number: 026406 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1