E-field dependence of piezoelectric properties of rhombohedral PZN-PT single crystal

摘要: Abstract The E-field dependence of piezoelectric properties rhombohedral single crystal PZN-4.5%PT were investigated as a function crystallographic orientation. For oriented crystals, partial depoling and subsequent domain reorientation results in peak dij vs. curves at −5kV/cm, followed by nonhysteretic saturation. This behavior indicates that became E>30kV/cm. Low field values for dij's crystals calculated extrapolating these high values. Hydrostatic coefficient dh ∼ 55pC/N, the crystal, also could be measured hydrostatic chamber. In contrast to poled stable configurations origin consistent regardless measurement technique. Piezoelectric coefficients, d33 −2280pC/N d31 −1000 pC/N reproducibly measured. Although dh=d33+2d31 is relevant related symmetry, calcu...