Highlights

From 26.10.-03.11.2023, Arne Vereijken, Varun Vanakalapu, Christian Janzen and Rico Huhnstock employed polarized neutron reflectometry at the world's most potent neutron source, the ILL in Grenoble, in order to examine the magnetization of their samples at varying depths and under the influence of an external magnetic field. They intended to confirm the formation of magnetic spiral states induced by two arbitrarily set exchange-bias effects.

Welcome Julian Hertlein and Christopher Wilke. We wish you a good time in the AG Ehresmann!

On 18.10.2023, Sapida Akhundzada successfully defended her doctoral thesis with the title Asymmetric magnetization reversal processes in exchange-biased microstructures. 

We wish you only the best for your future!

In October 2023, Lutz Marder and Niklas Golchert participated at an inhouse beamtime of the Small Quantum Systems (SQS) group of the European X-ray free-electron laser facility (EuXFEL). Goals of the experiment were on one hand the establishment of the "angular streaking" method as a tool for the characterization of attosecond soft X-ray pulses and on the other hand the implementation of intelligent online data analysis by machine learning.

From 01.10-10.10.2023, Emilia Heikura, Christina Zindel, Andreas Hans, Catmarna Küstner-Wetekkam, Lutz Marder and Johannes Viehmann conducted an experiment at the synchrotron radiation facility SOLEIL in France. During this experiment, it was investigated how the distance of an atom to the stereocenter of a chiral molecule (here: sec-butyl trimethylsilylether) influences the inner-shell photoelectron circular dichroism (PECD), a common measure for the chirality of molecules.

From the 27.09.-29.09.2023, our yearly group retreat took place. The objective of this event was the discussion of scientific topics in a relaxed environment as well as strengthening the team spirit within the group.