Time-dependent space-charge-limited conduction as a possible origin of the polarization offsets observed in compositionally graded ferroelectric films

H. K. Chan; Chi Hang Lam; F. G. Shin

doi:10.1063/1.1647258

Time-dependent space-charge-limited conduction as a possible origin of the polarization offsets observed in compositionally graded ferroelectric films

H. K. Chan, Chi Hang Lam, F. G. Shin

Research output: Journal article publication › Journal article › Academic research › peer-review

34 Citations (Scopus)

Abstract

The effects of free space charges on hysteresis-loop measurement of compositionally graded ferroelectrics were investigated. These effects were quite likely to be responsible for the polarization offsets observed in experiments. An expression for the conduction-current density associated with those free space charges was also derived. The computer simulation of compositionally graded lead zirconate titanate, which was placed in the Sawyer-Tower circuit and driven by an alternating applied voltage, produced shifting of measured hysteresis loops.

Original language	English
Pages (from-to)	2665-2671
Number of pages	7
Journal	Journal of Applied Physics
Volume	95
Issue number	5
DOIs	https://doi.org/10.1063/1.1647258
Publication status	Published - 1 Mar 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
General Physics and Astronomy

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10.1063/1.1647258

http://hdl.handle.net/10397/4216

Cite this

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Time-dependent space-charge-limited conduction as a possible origin of the polarization offsets observed in compositionally graded ferroelectric films

Abstract

ASJC Scopus subject areas

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