Figure 2
Magnetic σ (H) loops performed at room temperature compared with commercial powders. The increase of magnetization on sample ZnO.Et is attributed to formation of Zni, while its reduction on sample ZnO is attributed to a reduction of VO. The inset represents the first and fourth quadrants including the diamagnetic component of M(H) loops as obtained from the PPMS. The lower value of the diamagnetic component on sample ZnO.Com suggests that Zni is randomly distributed in the whole particle.