Local phase decomposition as a cause of polarization fatigue in ferroelectric thin films

Lou, X. J. and Zhang, M. and Redfern, S. A. T. and Scott, J. F. (2006) Local phase decomposition as a cause of polarization fatigue in ferroelectric thin films. Physical Review Letters, 97 (17). p. 177601. DOI 10.1103/PhysRevLett.97.177601

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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.

Item Type: Article
Uncontrolled Keywords: 2006 AREP IA52 2006 P
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Physical Review Letters
Volume: 97
Page Range: p. 177601
Identification Number: 10.1103/PhysRevLett.97.177601
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:07
URI: http://eprints.esc.cam.ac.uk/id/eprint/488

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