Table 3.

Magnetic Characteristics of the pure and Co doped NiAl₂O₄.

Sample	Coercivity	Saturation Magnetization (Ms)	Remnant Magnetization (Mr)	Squareness Ratio (R = Mr/Ms)	Anisotropic Constant (K)
Pure	214.48	0.48763	38.28 × 10-3	0.078	108.9
1 % Co Doped	443.0716	0.49218	56.68 × 10-3	0.115	227.1
3 % Co Doped	317.18	0.34637	20.82 × 10-3	0.060	114.4
5 % Co Doped	339.12	0.34037	17.29 × 10-3	0.050	120.2