SKM 2023 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 4: f-Electron Systems and Heavy Fermions I

TT 4.1: Talk

Monday, March 27, 2023, 09:30–09:45, HSZ 201

The potential of resonant x-ray scattering for the study of Kondo lattices — •Marein Rahn — Institute for Solid State and Materials Physics, Technical University of Dresden, 01062 Dresden, Germany

Kondo lattices represent a pivotal point of quantum matter - where local-itinerant correlations start being shaped by a material's lattice character and their consequences can no longer be reduced to local/mean-field models. Many traditional experimental probes cannot provide insights ``beyond the mean field'' because they themselves average this phenomenon over time and space. In this talk, I will showcase recent advances in momentum-resolved spectroscopies that can reveal the fine structure and dynamics of Kondo quasiparticles in unprecedented detail. Synchrotron-based techniques like resonant inelastic x-ray scattering provide a particularly interesting new perspective. Their experimental possibilities in f-electron systems have been hardly exploited, which should also be a strong motivation for progress in computational approaches.