Report
Role of matrix elements in the time-resolved photoemission signal
| العنوان: | Role of matrix elements in the time-resolved photoemission signal |
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| المؤلفون: | Boschini, F., Bugini, D., Zonno, M., Michiardi, M., Day, R. P., Razzoli, E., Zwartsenberg, B., Neto, E. H. da Silva, Conte, S. dal, Kushwaha, S. K., Cava, R. J., Zhdanovich, S., Mills, A. K., Levy, G., Carpene, E., Dallera, C., Giannetti, C., Jones, D. J., Cerullo, G., Damascelli, A. |
| المصدر: | New J. Phys. 22 023031 (2020) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | Time- and angle-resolved photoemission spectroscopy accesses the ultrafast evolution of quasiparticles and many-body interactions in solid-state systems. However, the momentum- and energy-resolved transient photoemission intensity may not be unambiguously related to the intrinsic relaxation dynamics of photoexcited electrons. In fact, interpretation of the time-dependent photoemission signal can be affected by the transient evolution of both the one-electron removal spectral function as well as the photoemission dipole matrix elements. Here we investigate the topological insulator Bi$_{1.1}$Sb$_{0.9}$Te$_2$S to demonstrate, by means of a careful probe-polarization study, the transient contribution of matrix elements to the time-resolved photoemission signal. Comment: 7 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/ab6eb1 |
| URL الوصول: | http://arxiv.org/abs/1810.06571 |
| رقم الانضمام: | edsarx.1810.06571 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/ab6eb1 |
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