Influence of annealing temperature and doping rate on the magnetic properties of Zr–Mn substituted Sr-hexaferrite nanoparticles

Mn substituted cobalt ferrites (CoMnxFe2−xO4 (x=0.0, 0.2, 0.4, 0.6, 0.8, 1.0)): As magnetically separable heterogeneous nanocatalyst for the reduction of nitrophenols

“…Also the saturation magnetization was observed to increase with increase in annealing temperature. This could be attributed to the fact that as the average particle size increases, the amount of super-paramagnetic particles in the ferrite sample decreases thus increasing the overall magnetization [32]. The values of saturation magnetization for …”

Structural, dielectric and magnetic properties of Cr–Zn doped strontium hexa-ferrites for high frequency applications

“…M-type hexa-ferrites are more useful, for high frequency (GHz) applications than soft ferrites due to their high magneto crystalline anisotropy which resulted in very low residual losses [9][10][11][12]. Several synthesis techniques have been used to prepare and tailor the properties of strontium hexa-ferrite nanoparticles [13][14][15][16][17]. Wet-chemical method, along with low synthesis temperature, provides better control on composition and homogeneity [18].…”

Structural, magnetic and microwave absorption properties of Ce-doped barium hexaferrite

“…Barium hexaferrites have large crystalline anisotropy, relatively large magnetization, high intrinsic coercivity, excellent chemical stability, high Curie temperature and low cost [1][2][3]. Due to the development of radar, microwave darkroom, anti-electromagnetic interference coating, etc.…”