Temperature- and electric-field-dependent electrical properties and nanoscale domain structures in PIN-0.49PMN-0.27 PT single crystal

The effect of temperature and electric field on phase transitions, dielectric relaxation behavior, and macroscopic electrical performances of Pb(In1/2Nb1/2)O3-0.49 Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PIMNT27) single crystals were studied. The nanosized domains of unpoled crystals and the engineered domains of DC electric field poled crystals were intuitively recorded by piezoresponse force microscopy (PFM). The distribution of nanosized domains with different sizes and patterns induced by domain switching and domain wall motion under different poling fields and temperatures were also studied to understand the effect of nanosized domains on phase transitions, piezoelectric, and electromechanical properties.