Article ID Journal Published Year Pages File Type
1625677 Journal of Alloys and Compounds 2007 5 Pages PDF
Abstract

Techniques such as high energy electron diffraction (RHEED), atomic force microscope (AFM) are used to characterize LNO film prepared by rf sputtering. It is found that LNO films are epitaxially grown on the SrTiO3 (STO) substrates. Root mean square roughness (RMS) of LNO film increases with increasing growth temperature, and then becomes somewhat saturated when deposition temperature is higher than 350 °C. Meanwhile, resistivity of LNO film decreases with increasing growth temperature, and becomes relatively stable when deposition temperature is higher than 200 °C. It is found that ferroelectric properties of LaNiO3/Pb(Zr,Ti)O3/LaNiO3 (LNO/PZT/LNO) capacitors prepared on STO substrate strongly depend on the deposition temperature of LNO bottom electrode. The higher the deposition temperature of LNO bottom electrode, the larger is the switchable polarization of LNO/PZT/LNO capacitor.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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