Table 3.

Calculated values of average crystallite size < L > and specific surface area (SSA) values for NFO, MNFO, and ZNFO spinel ferrites.

Samples		Debye Sherrer		Modified Debye Sherrer		Williamson–Hall		Size strain plot
		< L > (nm)	(SSA)$\frac{m^2}{\mathit{gr}}$	< L > (nm)	(SSA)$\frac{m^2}{\mathit{gr}}$	< L > (nm)	(SSA)$\frac{m^2}{\mathit{gr}}$	< L > (nm)	(SSA)$\frac{m^2}{\mathit{gr}}$
NFO		23.56	47,321	25.73	43,330	23.69	47,061	25.20	44,241
MNFO		27.45	40,716	31.68	35,280	30.59	36,537	34.57	32,330
ZNFO		19.92	56,302	22.17	50,588	16.04	69,921	15.33	73,159