“…6 shows the loops of polarization (P) versus electric field (E) for the PNTSr/x ceramics measured at room temperature and 20 Hz. There appears trace of constriction in PeE loops for all samples, which may be associated with crystal defects [20]. Although saturation has not been reached, the loops are similar to those of other PbNb 2 O 6 -based ceramics with the single orthorhombic ferroelectric phase reported previously [8,9].…”
Section: Dielectric and Piezoelectric Propertiessupporting
“…6 shows the loops of polarization (P) versus electric field (E) for the PNTSr/x ceramics measured at room temperature and 20 Hz. There appears trace of constriction in PeE loops for all samples, which may be associated with crystal defects [20]. Although saturation has not been reached, the loops are similar to those of other PbNb 2 O 6 -based ceramics with the single orthorhombic ferroelectric phase reported previously [8,9].…”
Section: Dielectric and Piezoelectric Propertiessupporting
“…Higher than T 2 , no hysteresis can be observed, but a non-linear P-E relation curve. Similar shapes of hysteresis loops have been observed in Pb x Sr 1-x TiO 3 ceramics recently (Chen et al, 2009). To get insight understanding of the influence of the frequency on the shape of the hysteresis, more hysteresis loops are presented in Fig.…”
Section: Fig 3 Static Hysteresis Loops At Different Temperaturessupporting
“…PZ-based materials in bulk and film forms are also the most extensively investigated AFE materials at present. There are a lot of reports on PZ-based AFE materials, such as: (Pb,La)ZrO 3 [6][7][8][9][10][11][12][13][14]. Based on these studies, it was concluded that the final properties of AFE materials either in bulk or in film forms were heavily dependent on its chemical composition.…”
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