The influence of the top-contact metal on the ferroelectric properties of epitaxial ferroelectric Pb(Zr0.2Ti0.8)O3 thin films
作者： Lucian Pintilie , Ionela Vrejoiu , Dietrich Hesse , Marin Alexe , None
DOI: 10.1063/1.3021293
关键词: Electronegativity 、 Tantalum 、 Condensed matter physics 、 Metal 、 Ohmic contact 、 Materials science 、 Electrode 、 Work function 、 Thin film 、 Ferroelectricity
摘要: Electrical properties, i.e., dielectric hysteresis and leakage current, of epitaxial Pb(Zr0.2Ti0.8)O3 films with bottom SrRuO3 electrode different metals as top contact were investigated. The current is largely insensitive to the work function metal but increases decreasing electronegativity well number electrons on d-shell metal. best rectifying properties are obtained for complete (Cu, Au, Ag, Pd), while few (Ta, Cr) form Ohmic-like contacts.
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