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采用磁控溅射法和脉冲激光沉积法,在SrTiO3(001)衬底上制备了La0.5Sr0.5CoO3(70 nm)/Pb(Zr0.4Ti0.6)O3(70 nm)/La0.5Sr0.5CoO3(70 nm)(LSCO/PZT/LSCO)铁电电容器异质结。X射线衍射结果表明:LSCO和PZT薄膜均为外延结构。在5 V的外加电压下,LSCO/PZT/LSCO电容器具有较低的矫顽电压(0.49 V),较高的剩余极化强度(41.7μC/cm^2)和较低的漏电流密度(1.97×10^-5A/cm^2),LSC