Coherent X-ray diffraction analysis of nanopatterned magnet with icosahedral symmetry*

We have carried out coherent resonant X-ray diffraction experiments on arrays of nanopatterned magnets with icosahedral symmetry. Coherent speckle patterns were collected on the reflection-mode geometry allowing the direct access to the nanopatterned magnetic moments on thick Si substrates without requiring any extra sample treatment for the experiemnts. Subtracting the two coherent speckle patterns from right and left circular polarizarization reflect on the domain structure. Obtained domain structure was compared with micro-magnetic simulation to compare the groud-state structure of the patterned nano-magnet with quasicrystal symmetry.