Hysteresis relaxation in (Pb,La)(Zr,Ti)O3 thin film capacitors with (La,Sr)CoO3 electrodes
Publication Type | Journal Article
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Authors | |
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DOI |
10.1063/1.117732
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Abstract |
We report on the thermally activated hysteresis relaxation effects in (La,Sr)CoO3/ (Pb,La)(Zr,Ti)O3/(La,Sr)CoO3 thin film ferroelectric capacitors. Films cooled in oxygen deficient ambients exhibit a marked voltage offset in the hysteresis loops. Upon the application of a dc bias voltage or unidirectional pulses of the same polarity as the offset, the loops become more symmetric. Subsequently, holding the capacitors in the original preferred polarization state leads to a relaxation of the hysteresis loop towards its original voltage offset condition. The relaxation process is described by a stretched exponential and is thermally activated. © 1996 American Institute of Physics.
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Notes |
cited By 50
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Journal |
Applied Physics Letters
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Volume |
69
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Year of Publication |
1996
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Number |
17
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Pagination |
2540-2542
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Publisher |
American Institute of Physics Inc.
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ISSN Number |
00036951
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Research Areas | |
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