Effect of Na Content on the Physical Properties of Ba_0.5Sr_0.5TiO₃ Powders

Table 1

Crystallite size, lattice parameter, and indirect band gap of BST powders with various Na contents.

Sample	Crystallite size; (nm)	Lattice parameter; (nm)		Indirect band gap (eV)
		𝑎	𝑐
BST0	30	0.3954	—	2.80
BST0.025	29	0.3934	0.3950	3.15
BST0.05	30	0.3931	0.3946	2.90
BST0.15	28	0.3927	0.3944	3.18
BST0.25	40	0.3934	—	3.20
BST0.35	54	0.3939	—	2.90