| Autor: |
F Boschini, D Bugini, M Zonno, M Michiardi, R P Day, E Razzoli, B Zwartsenberg, M Schneider, E H da Silva Neto, S dal Conte, S K Kushwaha, R J Cava, S Zhdanovich, A K Mills, G Levy, E Carpene, C Dallera, C Giannetti, D J Jones, G Cerullo, A Damascelli |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 22, Iss 2, p 023031 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/ab6eb1 |
| Popis: |
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 Bi _1.1 Sb _0.9 Te _2 S to demonstrate, by means of a detailed probe-polarization dependent study, the transient contribution of matrix elements to TR-ARPES. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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