Figure 5
From: Magnetic domain interactions of Fe3O4 nanoparticles embedded in a SiO2 matrix
Magnetic domain interactions for the magnetization and demagnetization of (a) Fe3O4 NPs immersed in a SiO2 matrix after stirring for 4 h, H = 0; (b) orientation of the SSD at H = 12000 Oe; (c) at H = 0, the sample showed the local SSD orientation under the saturation conditions of the applied field; (d) agglomeration of NPs in a SiO2 matrix after 12 h at H = 0; (e) orientation of the NPs at H = 12000 Oe; and (f) disorder of the NPs at H = 0.
