FMR Study of the Porous Silicate Glasses with Fe₃O₄ Magnetic Nanoparticles Fillers

Figure 6

The dependence of the absorption lines derivatives, 𝑑𝜒^/𝑑𝐻_d𝑐, on dc magnetic field 𝐻_dc for two samples of type D. The plot made by dashed line relates to magnetic nanoparticles, which in the course of filling the pores of the porous glass were subjected to an external magnetic field of a permanent magnet (𝐵_sat∼0.5 T). It was not the case for the plot made by continuous line.