Time-resolved x-ray photoelectron spectroscopy at FLASH

Hellmann, S. (author)

Sohrt, C. (author)

Beye, M. (author)

Rohwer, T. (author)

Sorgenfrei, F. (author)

Marczynski-Buehlow, M. (author)

Kallaene, M. (author)

Redlin, H. (author)

Hennies, Franz (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory

Bauer, M. (author)

Foehlisch, A. (author)

Kipp, L. (author)

Wurth, W. (author)

Rossnagel, K. (author)

(creator_code:org_t)

Related links:: http://dx.doi.org/10... (free); show more...; https://doi.org/10.1...; https://lup.lub.lu.s...; https://doi.org/10.1...; show less...

Abstract Subject headings

The technique of time-resolved pump-probe x-ray photoelectron spectroscopy using the free-electron laser in Hamburg (FLASH) is described in detail. Particular foci lie on the macrobunch resolving detection scheme, the role of vacuum space-charge effects and the synchronization of pump and probe lasers. In an exemplary case study, the complete Ta 4f core-level dynamics in the layered charge-density-wave (CDW) compound 1T-TaS2 in response to impulsive optical excitation is measured on the sub-picosecond to nanosecond timescale. The observed multi-component dynamics is related to the intrinsic melting and reformation of the CDW as well as to extrinsic pump-laser-induced vacuum space-charge effects.

By the author/editor: Hellmann, S.; Sohrt, C.; Beye, M.; Rohwer, T.; Sorgenfrei, F.; Marczynski-Buehl ...; show more...; Kallaene, M.; Redlin, H.; Hennies, Franz; Bauer, M.; Foehlisch, A.; Kipp, L.; Wurth, W.; Rossnagel, K.; show less...

About the subject

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