Journal
JOURNAL OF APPLIED PHYSICS
Volume 92, Issue 7, Pages 3990-3994Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1505981
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Antiferroelectric PbZrO3 (PZ) films have been fabricated on LaNiO3/Pt/Ti/SiO2/Si substrates using a sol-gel process. The films with perovskite structure showed highly <001> preferred orientation. An antiferroelectric phase was identified by the presence of 1/4{110} superlattice spots in a [001] selected area electron diffraction pattern. The field-induced antiferroelectric to ferroelectric phase switching was demonstrated at room temperature with full saturation and a maximum polarization of 40 muC/cm(2). Dielectric properties were investigated as a function of both temperature and frequency. The presence of a conductive buffer layer of LaNiO3 on Pt/Ti/SiO2/Si substrate enabled the growth of high quality and highly oriented PZ antiferroelectric thin films that showed near zero remanent polarization and squared hysteresis loops. (C) 2002 American Institute of Physics.
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