Effects of Chromium(III) Ion Doping on Structural, Optical, and Magnetic Properties of Nickel–Cobalt Ferrite Nanoparticle

Table 4

Variation of magnetic parameters with Cr-doped concentrations.

Sample	Coercive field, Hc (G)	Saturation magnetization, Ms (emu/g)	Remnant magnetization, Mr (emu/g)	Squareness (Mr/Ms)
Ni0.5Co0.5Fe2O4	1,530.43	42.02	18.59	0.442
Ni0.5Co0.5Cr0.1Fe1.9O4	259.885	36.69	9.53	0.261
Ni0.5Co0.5Cr0.2Fe1.8O4	115.5	32.11	5.69	0.177