Electrical properties of PMN-33PT thin film at MPB

Abstract

This paper presents a systematic investigation of the electric properties of epitaxial PMN-33PT thin film as a function of temperature and frequency. Complex impedance measurements were performed over the temperature range of 30 -500 K and frequency range 20 Hz -1 MHz. Obtained results were corrected for the SRO series resistance. Ferroelectric hysteresis loops and electric field tunability of the real part of dielectric permittivity were measured in the 300 K -450 K temperature range and at a frequency of 1 kHz. The results of electrical field tunability of complex dielectric permittivity were approximated by Landau-Ginsburg-Devonshire theory frame by the Johnson relation. Meanwhile, ferroelectric hysteresis loop measurements of epitaxial PMN-33PT thin film shows a good hysteresis property with a remnant polarization of 2P r 10 mC/cm 2 and coercive field of 2E c 12 kV/cm at temperature range from 300 K to 380 K.

Non-stoichiometry and its implications for the properties of PMN–PT thin films

“…Therefore, the presence of a small concentration of pyrochlore inclusions does not play a crucial role in the functional response of the material. The reported di-, ferro-and piezoelectric properties are comparable to other literature reports on PLD-derived epitaxial PMN-PT thin films around the MPB [10,11,[46][47][48][49].…”

“…The reported di-, ferro-and piezoelectric properties are comparable to other literature reports on PLD-derived epitaxial PMN-PT thin films around the MPB. 10,11,[46][47][48][49]…”