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  Role of matrix elements in the time-resolved photoemission signal

Boschini, F., Bugini, D., Zonno, M., Michiardi, M., Day, R. P., Razzoli, E., et al. (2020). Role of matrix elements in the time-resolved photoemission signal. New Journal of Physics, 22: 023031, pp. 1-8. doi:10.1088/1367-2630/ab6eb1.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-09EC-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-0A15-8
Genre: Journal Article

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 Creators:
Boschini, F.1, Author
Bugini, D.1, Author
Zonno, M.1, Author
Michiardi, M.2, Author              
Day, R. P.1, Author
Razzoli, E.1, Author
Zwartsenberg, B.1, Author
Schneider, M.1, Author
Da Silva Neto, E. H.1, Author
Dal Conte, S.1, Author
Kushwaha, S. K.1, Author
Cava, R. J.1, Author
Zhdanovich, S.1, Author
Mills, A. K.1, Author
Levy, G.1, Author
Carpene, E.1, Author
Dallera, C.1, Author
Giannetti, C.1, Author
Jones, D. J.1, Author
Cerullo, G.1, Author
Damascelli, A.1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              

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Free keywords: matrix-elements, time- and angle-resolved photoemission spectroscopy (TR-ARPES), topological insulators, ultrafast electron dynamics, Antimony compounds, Bismuth compounds, Electric insulators, Photoelectron spectroscopy, Tellurium compounds, Topological insulators, Angle resolved photoemission spectroscopy, Electronic distribution, Many-body interactions, Matrix elements, Photoemission intensity, Photoexcited electrons, Time-resolved photoemissions, Ultrafast electron dynamics, Electrons
 Abstract: Time- and angle-resolved photoemission spectroscopy (TR-ARPES) provides access to the ultrafast evolution of electrons and many-body interactions in solid-state systems. However, the momentum- and energy-resolved transient photoemission intensity may not be unambiguously described by the intrinsic relaxation dynamics of photoexcited electrons alone. The interpretation of the time-dependent photoemission signal can be affected by the transient evolution of the electronic distribution, and both the one-electron removal spectral function as well as the photoemission matrix elements. Here we investigate the topological insulator Bi1.1Sb0.9Te2S to demonstrate, by means of a detailed probe-polarization dependent study, the transient contribution of matrix elements to TR-ARPES. © 2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.

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Language(s): eng - English
 Dates: 2020-02-182020-02-18
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1088/1367-2630/ab6eb1
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Title: New Journal of Physics
  Abbreviation : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 22 Sequence Number: 023031 Start / End Page: 1 - 8 Identifier: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666