Rostock 2019 – scientific programme

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MO: Fachverband Molekülphysik

MO 6: Metal Complexes

MO 6.7: Talk

Monday, March 11, 2019, 15:45–16:00, S HS 001 Biologie

Soft x-ray beam damage of a solid transition-metal complex — •Jan Ludwig¹, Markus Kubin², Rolf Mitzner², Christian Weniger², Alexander Föhlisch², Jan Kern³, Vittal Yachandra³, Junko Yano³, and Philippe Wernet² — ¹Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Berlin, Germany — ²Helmholtz-Zentrum Berlin, Berlin, Germany — ³Lawrence Berkeley National Laboratory, Berkeley, USA

Soft x-rays are widely used for L-edge spectroscopy on transition-metal compounds, but also cause beam damage due to photoreduction. Here we determine the acceptable threshold of x-ray dose tolerable for L-edge absorption spectroscopy of a Mn(III) compound and discuss the underlying mechanisms. The results are important for acquiring damage-free L-edge spectra of transition-metal compounds in general.