Figure 5From: The effects of surface spin on magnetic properties of weak magnetic ZnLa0.02Fe1.98O4 nanoparticlesThe schematic plot for understanding the magnetic behavior at 300 K for undiluted samples. The core-shell magnetization models in the situations annealing at low temperature such as 700°C (a), at intermediate temperature such as 800°C or 900°C (b), and at highest temperature such as 1000°C (c).Back to article page