作者: Ye Chen , Paul C. McIntyre
DOI: 10.1063/1.2769394
关键词: Oxide 、 Coercivity 、 Layer (electronics) 、 Materials science 、 Composite material 、 X-ray photoelectron spectroscopy 、 Inorganic chemistry 、 Ferroelectricity 、 Lead zirconate titanate 、 Chemical vapor deposition 、 Surface layer
摘要: X-ray photoelectron spectroscopy (XPS) revealed a lead-rich carbonatelike surface layer on polycrystalline lead zirconate titanate films grown by metal-organic chemical vapor deposition. In situ XPS studies indicated that originally present in the oxide film reacted with Pt during its deposition, forming Ti∕Zr-rich defective interfacial layer. Lead underwent nitric acid treatment, which effectively removed layer, exhibited stretched out of hysteresis loop vicinity coercive field, consistent presence nonferroelectric passive Reasonable agreement between XPS-measured interface thickness and determined electrical characterization was obtained.