Effects of ZnO nanoparticulate addition on the properties of PMNT ceramics

Table 2 Dielectric and ferroelectric properties of PMNT/ZnO ceramics

ZnO content (wt.%)	Dielectric properties^a		Ferroelectric properties^a		Loop squareness (R_sq)
	ε _r	tan δ	P _r /P _max	E _c /E _max
0	10380	0.0896	0.37	0.13	0.49
0.05	14344	0.0887	0.29	0.10	0.44
0.1	10051	0.0677	0.32	0.11	0.41
0.5	8650	0.0913	0.32	0.10	0.42
1.0	8734	0.0769	0.38	0.12	0.47

^aDielectric and ferroelectric properties are measured at room temperature with a frequency of 1 kHz and 20 Hz, respectively.