Time resolved ultrafast ARPES for the study of topological insulators: The case of Bi2Te3
| Autor: | Zhigang Jiang, Marino Marsi, J. Mauchain, E. Papalazarou, Yong P. Chen, M. Hajlaoui, Luca Perfetti, Amina Taleb-Ibrahimi, Ireneusz Miotkowski |
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| Rok vydání: | 2013 |
| Předmět: |
Surface (mathematics)
Materials science Condensed matter physics Fermi level General Physics and Astronomy Angle-resolved photoemission spectroscopy symbols.namesake X-ray photoelectron spectroscopy Topological insulator symbols General Materials Science Physical and Theoretical Chemistry Carrier dynamics Ultrashort pulse Excitation |
| Zdroj: | The European Physical Journal Special Topics. 222:1271-1275 |
| ISSN: | 1951-6401 1951-6355 |
| DOI: | 10.1140/epjst/e2013-01921-1 |
| Popis: | We discuss the application of time-resolved ultrafast angle resolved photoelectron spectroscopy to the study of photoexcited topological insulators. Measurements performed on the prototype material Bi2Te3 clearly show that all the main processes involved in the ultrafast surface carrier dynamics of topological insulators can be clearly observed and quantitatively analyzed. The comparison with other experimental results shows that the relative position of surface and bulk conduction bands with respect to the system Fermi level play an essential role in the recombination processes following ultrafast optical excitation. |
| Databáze: | OpenAIRE |
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