Utilization of SANS for investigation of magnetic structures and dynamics

V. Ryukhtin

Nuclear Physics Institute ASCR, Řež near Prague, Czech Republic

ryukhtin@ujf.cas.cz

There are plenty interesting examples of magnetic structures studied by small-angle neutron scattering (SANS). Here we would like to present several successful topics of the SANS usage. For example, the very first experimental observation of magnetic flux line lattices (FLL) - magnetic vortexes in type II superconductors - have been done using SANS. General approach as well as practical details of FLL measurements will be demonstrated. Other example is ferrofluids based on magnetic nanoparticles. SANS can be used for not just for structural characterizations but also for studying of their dynamics using stroboscopic and TISANE options.