Figure 5From: Low-Temperature Preparation of Superparamagnetic CoFe2O4 Microspheres with High Saturation MagnetizationRT magnetization curves for the of CoFe2O4 MSs with different reaction time: a 12 h, b 24 h (The inset shows enlarged magnetic hysteresis loops at low applied fields); photographs of CoFe2O4 MSs dispersion in a vial, c without magnetic field, d with magnetic field for 1 minBack to article page