Table 1.

The calculated lattice parameters (a, b, c, α, β, and γ), unit cell volumes, and average crystallite sizes of the (La_0.6Pr_0.4)_0.67Ca_0.33MnO₃ nanoparticles post-annealed at (A) 700 °C, (B) 800 °C, (C) 900 °C, and (D) 1000 °C for 5 h. Lattice parameters within ± 0.0003(a, b, c) are calculated from the XRD data. Average crystallite sizes within ± 1 are calculated using the Scherrer’s equation

Sample number	Annealing temperature (°C)	Lattice parameters (Å)	Unit cell volume (Å3)	Average crystallite size (nm)
A	700	a = 5.4365, b = 7.6727, c = 5.4334 α = β = γ = 90o	226.64	21
B	800	a = 5.4411, b = 7.6940, c = 5.4213 α = β = γ = 90o	226.96	32
C	900	a = 5.4429, b = 7.6887, c = 5.4470 α = β = γ = 90o	227.95	40
D	1000	a = 5.4446, b = 7.6960, c = 5.4441 α = β = γ = 90o	228.12	47