Forschungszentrum Jülich
Institut für Festkörperforschung

Ordering in Ferrofluids Measured on the New Focusing-Mirror USANS Diffractometer KWS-3

A. Vorobiev^a,b, G. Gordeev^b, E. Kentzinger^c, B. Toperverg^c
^a Max Plack Institut fur Metalforschung, Stuttgart, Germany
^b Petersburg Nuclear Physics Institute, Gatchina, 188350 St. Petersburg, Russia
^cInstitut für Streumethoden

For the first time, ordering in real (opaque) ferrofluids have been measured by ultra-small angle neutron scattering (USANS) on the new and worldwide unique focusing-mirror SANS spectrometer ,in Jiilich (KWS-3@FRJ-2). This experiment confirms the presence of nuclear scattering density correlations on a length scale two orders of magnitude greater than the single particle size, i.e. in the micrometer range.