Fig. 10From: Sn2+ Doping: A Strategy for Tuning of Fe3O4 Nanoparticles Magnetization Dipping Temperature/Amplitude, Irreversibility, and Curie PointChange of magnetization (M) with temperature of pristine Fe3O4 (blue, capital letters) nanoparticles and Au/Fe3O4 (red, small letters) for three indicated sequential heating–cooling cycles (magnetic field H = 200 Oe) (solid line, heating; dotted line, cooling)Back to article page