Journal
SOLID STATE COMMUNICATIONS
Volume 271, Issue -, Pages 11-15Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2017.12.017
Keywords
Ceramics; Remanent hysteresis; Time-dependent-compensated hysteresis; Ferroelectricity
Categories
Funding
- DRDO [ARMREB/MAA/2015/163]
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The conventionally reported value of remanent polarization (P-r) contains contribution from non-remanent components which are not usable for memory device applications. This report presents techniques which extract the true-remanent (intrinsic) component of polarization after eliminating the non-remanent component in ferroelectric ceramics. For this, remanent hysteresis task and positive-up-negative-down technique were performed which utilized the switchable properties of polarizations to nullify the contributions from the non-remanent (non-switchable) components. The report also addresses the time-dependent leakage behavior of the ceramics focusing on the presence of resistive leakage (a time-dependent parameter) present in the ceramics. The techniques presented here are especially useful for polycrystalline ceramics where leakage current leads to an erroneous estimation of P-r.
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