Figure 7From: Synthesis, magnetic and optical properties of core/shell Co1-x Zn x Fe2O4/SiO2 nanoparticles Photographs of CoFe 2 O 4 /SiO 2 (a), Co 0.5 Zn 0.5 Fe 2 O 4 /SiO 2 (b), and ZnFe 2 O 4 /SiO 2 (c) nanoparticles fired at 400°C.Back to article page