Poster

Accelerated degradation studies are widely applied in research on proton exchangemembranes (PEMs) for the investigation of the origins and mechanisms of performance lossfor electrolysis or fuel cell applications. In a nutshell, it is reported in literature thatdegradation in PEMs commonly occurs following Fenton-like reactions, where in situ formedH2O2 reacts with transition metal cations to produce radicals. [...]

The phase of the quantum-mechanical wave function can encode a topological structure with widerangingphysical consequences, such as anomalous transport effects and the existence of edge statesrobust against perturbations. While this has been exhaustively demonstrated for electrons, propertiesassociated with the elementary quasiparticles in magnetic materials are still underexplored.In our joint project, we have shown theoretically and via inelastic neutron scattering experimentsthat the bulk ferromagnet Mn5Ge3 hosts gapped topological Dirac magnons [1]. [...]

We discuss different concepts to realized crystal analyzer spectrometers at long pulse neutron sources.For the novel High Current Accelerator driven neutron sources, crystal arrays designed for large acceptanceenable resolutions down to 10 μeV with reasonable detector count rates.For the ESS we present a concept that might enable neV resolution by using GaAs monochromatorsand analyzers and the full pulse of the ESS. The design enables the use of elastic and inelasticfixed window scans. [...]