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

Maklar, Julian; Schüler, M.; Windsor, Yoav William; Nicholson, Christopher W.; Puppin, Michele; Walmsley, P.; Fisher, I. R.; Wolf, Martin; Ernstorfer, Ralph; Sentef, M. A.; Rettig, Laurenz

doi:10.1103/PhysRevLett.128.026406

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

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Maklar, Julian
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons203272

Windsor, Yoav William
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons61173

Nicholson, Christopher W.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons32746

Puppin, Michele
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22250

Wolf, Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21497

Ernstorfer, Ralph
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Institut für Optik und Atomare Physik, Technische Universität Berlin;

Sentef, M. A.
Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Rettig, Laurenz
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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2108.12323.pdf
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Citation

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.

Cite as: https://hdl.handle.net/21.11116/0000-0009-22B9-0

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.