Ultrafast electron dynamics in a topological surface state observed in two-dimensional momentum space

Ultrafast electron dynamics in a topological surface state observed in two-dimensional momentum space

We study ultrafast population dynamics in the topological surface state of Sb2Te3 in two-dimensional momentum space with time- and angle-resolved two-photon photoemission spectroscopy. Linearly polarized mid-infrared pump pulses are used to permit a direct optical excitation across the Dirac poin...

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Autors principals: Reimann, J., Sumida, K., Kakoki, M., Kokh, K. A., Tereshchenko, O. E., Kimura, A., Güdde, J., Höfer, U.
Format: Article
Idioma:anglès
Publicat: Philipps-Universität Marburg 2023
Matèries:
Physik
Physics
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