New method to measure domain-wall motion contribution to piezoelectricity: the case of PbZr0.65Ti0.35O3 ferroelectric

A new data analysis routine is introduced to reconstruct the change in lattice parameters in individual ferroelastic domains and the role of domain-wall motion in the piezoelectric effect

Semën Gorfman; Hyeokmin Choe; Guanjie Zhang; Nan Zhang; Hiroko Yokota; Anthony Michael Glazer; Yujuan Xie; Vadim Dyadkin; Dmitry Chernyshov; Zuo-Guang Ye

2020

Scholarcy highlights

  • A new data analysis routine is introduced to reconstruct the change in lattice parameters in individual ferroelastic domains and the role of domain-wall motion in the piezoelectric effect
  • Using special electronics for the synchronization of a PILATUS X-ray area detector with a voltage signal generator, the X-ray diffraction intensity distribution was measured around seven split Bragg peaks as a function of external electric field
  • Compared with previously existing approaches, the new method benefits from the availability of a three-dimensional diffraction intensity distribution, which enables the separation of Bragg peaks diffracted from differently oriented domain sets
  • The contribution of electric-field-induced changes to the lattice parameters averaged over all the domains is 71 pC N−1
  • The equivalent value corresponding to the change in lattice parameters in individual domains may reach up to 189 pC N−1

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