Effect of textured LaNiO3 electrode on the fatigue improvement of Pb(Zr0.53Ti0.47)O3 thin films

4 March 1996

journal article
Published by AIP Publishing in Applied Physics Letters

Vol. 68 (10) , 1430-1432
https://doi.org/10.1063/1.116103

Abstract

By changing the electrode combination of Pt and LaNiO₃ (LNO), four capacitor types of Pt/PZT/Pt/Si, Pt/LNO/PZT/Pt/Si, Pt/LNO/PZT/LNO/Pt/Si, and Pt/PZT/LNO/Pt/Si, were prepared to investigate the fatigue and hysteresis characteristics of the sol‐gel‐derived Pb(Zr_0.53Ti_0.47)O₃ (PZT) ferroelectric thin films. Among them, the (100)‐ and (001)‐oriented PZT films were grown on the (100)‐textured LNO electrode, but randomly oriented films were obtained on the Pt electrode. It was found that the use of LNO bottom electrode would improve the fatigue property quite significantly, but only the capacitor with LNO as both top and bottom electrodes is shown to be fatigue‐free up to 10¹¹ cycles, and the shapes of the hysteresis loop almost unchanged after the fatigue test.

Keywords

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