Title: Local Phase Decomposition as a Cause of Polarization Fatigue in Ferroelectric Thin Films
Abstract: We show that lead zirconate titanate thin films undergo local phase decomposition during fatigue. The original remanent polarization of the fatigued film is completely restored after furnace annealing in an O2 atmosphere, following a significant regrowth of a perovskite phase from the pyrochlorelike structure. By comparing our data with other researchers' work on annealing of fatigued ferroelectric samples, we conclude that local phase separation is the generic reason for electrical fatigue in ferroelectrics. A fatigue model is proposed in order to interpret our experimental data.
Publication Year: 2006
Publication Date: 2006-10-26
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 137
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