Table 4 Coercive field (Ec), remanent polarization (Pr) and spontaneous polarization (Ps) values of the K1−xNaxTa1−yNbyO3 single crystals.

From: Origin of giant piezoelectric effect in lead-free K1−xNaxTa1−yNbyO3 single crystals

 

Ec (kV/cm)

Pr (μC/cm2)

Ps(μC/cm2)

K0.30Na0.70Ta0.37Nb0.63O3

6.52

6.11

9.14

K0.36Na0.64Ta0.40Nb0.60O3

5.05

5.37

10.34

K0.39Na0.61Ta0.42Nb0.58O3

6.73

6.59

9.86

K0.334Na0.666NbO326

11.59

~12

~12

K0.455Na0.545NbO326

11.11

~12

~12

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