Values of electrical parameters deduced from the Nyquist for La_1−2xBa_xBi_xFeO₃ (x = 0.00, 0.50, 0.10, 0.15 and 0.20): grain boundary contribution.

Grain boundary contribution
T (K)	x = 0.00			x = 0.05			x = 0.10			x = 0.15			x = 0.20
	R gb (107 Ω)	QPEgb (10−12)	α	R gb (107 Ω)	QPEgb (10−12)	α	R gb (107 Ω)	QPEgb (10−12)	α	R gb (107 Ω)	QPEgb (10−12F)	α	R gb (107 Ω)	QPEgb (10−12)	α
160	463 000	2.417	0.750	187.239	0.416	0.919	16.718	0.5276	0.66	4470.142	0.809	0.550	22.142	0.277	0.611
180	85 480	2.370	0.689	16.501	0.886	0.655	1.642	0.769	0.72	474.9927	1.698	0.570	2.84	0.496	0.620
200	779	6.188	0.591	1.967	2.308	0.577	0.774	1.233	0.72	76.4	2.330	0.604	0.47	1.470	0.593
220	164.8	7.950	0.550	0.381	4.909	0.591	0.057	2.842	0.65	19.9	2.241	0.722	0.0948	3.297	0.587
240	29.43	9.661	0.529	0.062	6.890	0.560	0.016	3.639	0.61	4.81	3.833	0.744	0.0134	4.170	0.605
260	5.41	13.822	0.508	0.012	8.540	0.589	0.0054	4.652	0.60	0.84	4.244	0.713	0.00336	6.940	0.611
280	1.7	15.161	0.516	0.00294	9.651	0.583	0.00162	5.761	0.58	0.36	4.976	0.629	0.00132	7.050	0.639
300	0.31	18.830	0.527	8.225 × 10−4	10.840	0.632	9.539 × 10−4	52.76	0.66	0.21	6.036	0.717	5.420 × 10−4	10.508	0.608