期刊
INTEGRATED FERROELECTRICS
卷 99, 期 -, 页码 3-12出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10584580802107478
关键词
PREISACH approach; ferroelectric fatigue
The PREISACH approach is applied to provide further insight into the physical mechanisms of ferroelectric operation and degradation. Starting from the discussion on experimental determined PREISACH distribution, analytical formulae for the various fatigue cycles is deduced. Considerations about the uniform expression respects to the cycle numbers, and the ways to describe it are also made. The agreement between the measure and calculation illustrate such a description to be an efficient tool to model the ferroelectric fatigue behavior. This approach is also utilized to examine nature of cycling degradation, the excursion of defect charge and their effect on domain pinning is characterized quantificationally. This model seems quite appropriate to relate the degenerative loops with the actual defect structure.
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