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O: Fachverband Oberflächenphysik

O 36: Poster Session II (Organic films and electronics, photoorganics; Nanostructures; Plasmonics and nanooptics, Surface chemical reactions and heterogeneous catalysis, Surface dynamics )

O 36.88: Poster

Dienstag, 12. März 2013, 18:15–21:45, Poster B2

Details in the short-time response of the photo-induced CDW phase transition of 1T-TiSe₂ measured with femtosecond XUV photoemission — •S. Eich¹, J. Urbancic¹, M. Wiesenmayer¹, A.V. Carr², A. Ruffing¹, S. Jakobs¹, S. Hellmann³, T. Rohwer³, M.M. Murnane², H.C. Kapteyn², L. Kipp³, K. Rossnagel³, M. Bauer³, S. Mathias¹, and M. Aeschlimann¹ — ¹TU Kaiserslautern and Research Center OPTIMAS, 67663 Kaiserslautern, Germany — ²JILA, University of Colorado and NIST, Boulder, Colorado 80309-0440, USA — ³Institute of Experimantal and Applied Physics, University of Kiel, 24098 Kiel, Germany

We use time- and angle-resolved photoemission spectroscopy (trARPES) with sub 150 meV energy and sub 30 fs time-resolution to study the photo-induced phase transition in the charge-density wave compound 1T-TiSe₂ [1]. The improved energy-resolution in comparison to our previous studies does now allow us to disentangle more details in the short-time response of this charge-density wave compound to an ultrafast laser excitation.
Rohwer et al., Nature 471,490 (2011)