Currently, we are interested in the spin dynamics of one- and two-dimensional systems, with dominating electron interactions, investigated using nuclear magnetic resonance (NMR) as well as complementary techniques employing inelastic neutron scattering (external pageINScall_made) and angle-resolved photoemission spectroscopy (external pageARPEScall_made). Our research activity is carried out both at ETH (NMR), as well as at the large-scale facilities of Paul Scherrer Institut (external pagePSIcall_made).