Double hysteresis loop in (Pb0.90La0.10)Ti0.975O3/Pb(Zr0.20Ti0.80)O-3 bilayer thin films

作者：Wu Jiagang^*; Zhu Jiliang; Xiao Dingquan; Zhu Jianguo

来源：Applied Physics Letters, 2007, 91(21): 212905.

DOI：10.1063/1.2817745

(Pb0.90La0.10)Ti0.975O3/Pb(Zr0.20Ti0.80)O-3 bilayer thin films were fabricated using radio frequency magnetron sputtering with a PbOx buffer layer. The x-ray diffraction patterns show that the bilayers possess highly (100) orientation. Polarization hysteresis and capacitance-voltage characteristics of the bilayers show clear antiferroelectric (AFE) characteristics. The related mechanism for double hysteresis loop was also discussed. The competition among the intrinsic ferroelectric coupling at the interface between bilayers gives rise to an AFE polarization behavior.

• 出版日期2007-11-19
• 单位四川大学