Publikationsdatenbank

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. [...]

The cerebellum plays important roles in motor, cognitive, and emotional behaviors. Previous cerebellar coordinate-based meta-analyses (CBMAs) have complemented precision-mapping and parcellation approaches by finding generalizable cerebellar activations across the largest possible set of behaviors. [...]