Figure 7
From: High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

(a,b) Room temperature M-H loops for γ-Fe2O3 nano-particles and its corresponding Ms of different CT; (c) Temperature dependence of hysteresis loops measured at 80 K, 180 K and 300 K of the pure γ-Fe2O3 nano-particles of 200 °C. (d) Comparisons of our work and other typical results of the particles size and Ms of γ-Fe2O3 nano-particles. The samples have been marked with circle (nano-particles) and pentagon (others), the values of the size represents the diameter of the samples.