Results discussion:enhanced piezoelectricity Critical phenomena b 0.014 0.04 0kV cm-1 0.5 kV cm-1 1.0 kV cm-1 1.5 kV cm-1 4.0 kV cm- 0.12 00a 0.012 First First orde First order Near critical Supercritical orde 30.02 CEP 0.10 0.010 0 ● 0.01 0.08 0.008 0.00 .0 0.51.01.5 1-6C) 8 0.06 ● E(kV cm1） 0.006 ● 0.04 0 0.004 0.02 0.002 PMNT:29.5% 0.00 0.000 0 2 3 380 400 390400 390 410390 410390 E(kV cm-） T(K) Z.Kutnjak,J.Petzelt,and R.Blinc,Nature 441,956(2006).Results & discussion: enhanced piezoelectricity Critical phenomena Critical phenomena Z. Kutnjak, J. Petzelt, and R. Blinc, Nature 441, 956 (2006)