Table 1.

In-plane ($a$) and out-of-plane ($c$) lattice parameters of BLFO, SRO and BPBO evaluated using RSM data

	BLFO		SRO		BPBO
	$a$ (Å)	$c$ (Å)	$a$ (Å)	$c$ (Å)	$a$ (Å)	$c$ (Å)
BPBO/BLFO/BPBO at 450 °C	3.96	3.96	–	–	4.31	4.29
SRO/BLFO/SRO at 700 °C	3.91	4.00	3.91	3.96	–	–
SRO/BLFO/SRO at 450 °C	3.95	3.95	3.93	3.92	–	–