Dresden 2026 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 14: Superconductivity: Properties and Electronic Structure

TT 14.4: Vortrag

Montag, 9. März 2026, 15:45–16:00, HSZ/0103

ARPES and RIXS combined in the recently designed "TOF-PAX-RIXS" spectrometer — •Chafic Fawaz¹, Tom Lacmann¹, Olena Tkach², Sergii Chernov³, Luis Filsinger¹, Yaryna Lytvynenko², Jan Schunck⁴, Olena Fedchenko², Siegmar Roth¹, Harshit Agarwal², Markus Scholz³, Jayjit Dey³, Kai Rossnagel⁵, Martin Beye⁴, Mortiz Hoesch³, Gerd Schönhense², Hans-Joachim Elmers², and Matthieu Le Tacon¹ — ¹Karlsruher Institut für Technologie (KIT), Germany — ²Johannes Gutenberg Universität Mainz, Germany — ³Deutsches Elektronen-Synchrotron DESY, Germany — ⁴Stockholm University, Sweden — ⁵Christian-Albrechts-Universität zu Kiel (CAU), Germany

The TOFPAXRIXS instrument, recently commissioned on the P04 beamline at DESY, offers a compact design that uniquely combines Angle-Resolved Photoemission Spectroscopy (ARPES) with a Time-of-Flight (ToF) detector and Resonant Inelastic X-ray Scattering (RIXS) using the Photoelectron spectrometry for Analysis of X-rays (PAX) approach [1]. This enables direct correlation between electronic properties measured by ARPES and collective excitations probed by RIXS, an essential step toward understanding electronic order in quantum materials, including unconventional superconductors, antiferromagnets, and van der Waals heterostructures.

In this talk, I will briefly introduce the ToF-PAX-RIXS concept and show first results combining ARPES and RIXS on the same sample.
[1] G. L. Dakovski et al., J Synchrotron Rad. 24 (2017) 1180

Keywords: ARPES; RIXS; electronic structure; magnetic excitations