In-situ observation of ultrafast 90° domain switching under application of an electric field in (100)/(001)-oriented tetragonal epitaxial Pb(Zr_0.4Ti_0.6)O₃ thin films.

ABSTRACT: Ferroelastic domain switching significantly affects piezoelectric properties in ferroelectric materials. The ferroelastic domain switching and the lattice deformation of both a-domains and c-domains under an applied electric field were investigated using in-situ synchrotron X-ray diffraction in conjunction with a high-speed pulse generator set up for epitaxial (100)/(001)-oriented tetragonal Pb(Zr_0.4Ti_0.6)O₃ (PZT) films grown on (100) _c SrRuO₃//(100)KTaO₃ substrates. The 004 peak (c-domain) position shifts to a lower 2θ angle, which demonstrates the elongation of the c-axis lattice parameter of the c-domain under an applied electric field. In contrast, the 400 peak (a-domain) shifts in the opposite direction (higher angle),

SUBMITTER: Ehara Y 

PROVIDER: S-EPMC5575037 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature