Nanostructure and Magnetic Field Ordering in Aqueous Fe3O4 Ferrofluids: A Small-Angle Neutron Scattering Study - Taufiq, A.; Department of Physics, Faculty of Mathematics and Natural Sciences, Negeri Malang University, Jl. Semarang No. 5, Sumbersari, Malang 65145, Indonesia (PPIKSN-BATAN, 2019)