Electrical and magnetic properties of Polystyrene doped with Iron nanoparticles

Microparticle photometry in a CMOS microsystem combining magnetic actuation and in situ optical detection

“…A summary of the different magnetic particles is shown in Table 1. A comparison with the magnetic content given by the particle supplier, showed a dependence between the volume magnetization and the magnetite content, which is in agreement with theory [19]. In Table 1 we can see, that a loss in magnetic force, which scales by the order of three, can be offset by an increase in magnetite content.…”

Effect of 3d transition metal substitution on microstructure and microwave absorption properties of FeSiB nanocrystalline flakes

“…In the case of absorption properties, material's permittivity should also be involved. For nanocrystalline material, interface polarization is considered as the reason of dielectric loss in common [15], and this phenomenon is enhanced with decreasing grain size so the permittivity increases for the substituted flakes.…”

Dielectric properties of the ethylene butylacrylate/carbon black nanocomposites

“…Generally, the conductivity of a polymer, rather than being a linear function of the concentration of the added particles, is almost insensitive for lower concentrations, and rises abruptly as the percolation threshold is reached [11][12][13]. This occurs at a critical concentration where the particles contact with each other and, as a consequence, a continuous electrical path of the doped particles is built throughout the polymer matrix.…”