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Regensburg 2022 – scientific programme

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O: Fachverband Oberflächenphysik

O 9: Ultrafast Electron Dynamics at Surfaces and Interfaces 2

Monday, September 5, 2022, 15:00–18:15, H3

15:00 O 9.1 Two distinct 4f states in mixed-valent TmSe1−xTex — •Chul hee Min, Michael Heber, Simon Müller, Lukas Wenthaus, Markus Schoz, Dmytro Kutnyakhov, Lenart Dudy, Hendrik Bentmann, Federico Pressacco, Matthias Kalläne, Woojae Choi, Yong Seung Kwon, Friedrich Reinert, and Kai Rossnagel
15:15 O 9.2 Time- and angle-resolved photoemission study of magnetic topological insulators MnBi2Te4 and MnBi4Te7 — •Paulina Majchrzak, Klara Volckaert, Deepnarayan Biswas, Denny Puntel, Wibke Bronsch, Federico Cilento, Xing-chen Pan, Yong Chen, and Søren Ulstrup
15:30 O 9.3 Electronic and phonon dynamics in 1T-TiSe2 with ultrafast core-level transient absorption spectroscopy in the extreme ultraviolet — •Tobias Heinrich, Hung-Tzu Chang, Sergey Zayko, Murat Sivis, and Claus Ropers
15:45 O 9.4 Coherent phonon-driven transient modulation of a Dresselhaus-type spin splitting in Td-WTe2Petra Hein, Stephan Jauernik, Hermann Erk, Lexian Yang, Yangpen Qi, Yan Sun, Claudia Felser, and •Michael Bauer
16:00 O 9.5 Coherent Control of a Metastable Hidden PhaseJ. Maklar, S. Dong, •J. Sarkar, Y. A. Gerasimenko, T. Pincelli, S. Beaulieu, P. S. Kirchmann, J. A. Sabota, S.-L. Yang, D. Leuenberger, R. G. Moore, Z.-X. Shen, M. Wolf, D. Mihailovic, R. Ernstorfer, and L. Rettig
16:15 O 9.6 Influence of carbon buffer layer on non-equilibrium carrier dynamics of epitaxial graphene and WS2/graphene heterostructures — •Lukas Bruckmeier, Niklas Hofmann, Leonard Weigl, Johannes Gradl, Neeraj Mishra, Stiven Forti, Camilla Coletti, and Isabella Gierz
16:30 O 9.7 Ultrafast phonon thermalization in a monolayer crystal — •Hyein Jung
16:45 O 9.8 k-dependent band gap renormalization in monolayer WS2 revealed by tr-ARPES — •Niklas Hofmann, Alexander Steinhoff, Leonard Weigl, Johannes Gradl, Tim Wehling, Sivan Refaely-Abramson, Neeraj Mishra, Stiven Forti, Camilla Coletti, and Isabella Gierz
17:00 O 9.9 Pump helicity-dependent anisotropic population dynamics in the topological insulator Sb2Te3 — •Jan Böhnke, Haydar Altug Yildirim, Stephan Schmutzler, Jaime Sánchez-Barriga, Oliver Rader, Cornelius Gahl, and Martin Weinelt
17:15 O 9.10 Spatio-temporal imaging of bright and dark excitonic quasiparticles in twisted TMD heterostructures — •Jan Philipp Bange, David Schmitt, Wiebke Bennecke, AbdulAziz AlMutairi, Guiseppe Meneghini, Daniel Steil, R. Thomas Weitz, Sabine Steil, G. S. Matthijs Jansen, Samuel Brem, Ermin Malic, Stephan Hofmann, Marcel Reutzel, and Stefan Mathias
17:30 O 9.11 SHG imaging microscopy of ultrafast charge-transfer dynamics in twisted TMDC heterostructures — •Marleen Axt, Jonas E. Zimmermann, Gerson Mette, and Ulrich Höfer
17:45 O 9.12 Spin and charge carrier dynamics at a CuPc/WSe2 heterostructure — •Sebastian Hedwig, Gregor Zinke, Benito Arnoldi, Martin Aeschlimann, and Benjamin Stadtmüller
18:00 O 9.13 Subcycle lightwave-ARPES in the strong-field regimeSuguru Ito, Manuel Meierhofer, Josef Freudenstein, Dmytro Afanasiev, •Jens Güdde, Rupert Huber, and Ulrich Höfer
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