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铁电薄膜电滞回线测量的快速数值补偿方法研究
引用本文:董维杰,崔岩,王兢.铁电薄膜电滞回线测量的快速数值补偿方法研究[J].电子学报,2009,37(11).
作者姓名:董维杰  崔岩  王兢
作者单位:1. 大连理工大学电子与信息工程学院,辽宁大连,116024;大连理工大学辽宁省微纳米技术及系统重点实验室,辽宁大连,116024
2. 大连理工大学辽宁省微纳米技术及系统重点实验室,辽宁大连,116024
3. 大连理工大学电子与信息工程学院,辽宁大连,116024
摘    要:测量铁电薄膜电滞回线必须补偿漏电阻和线性电容的影响.本文采用Sawyer-Tower改进电路,分析了在正弦激励电场下漏电阻和线性电容对自发极化的影响,指出二者分别关于饱和极化点奇对称和偶对称;利用正峰值饱和极化点及其前后相邻两点共3对激励电压和极化电压,推导出漏电阻和线性电容计算公式,进而可实现电滞回线快速数值补偿.本算法漏电阻和线性电容的计算时间仅为二分法用时的2%.

关 键 词:电滞回线  铁电薄膜  数值补偿

Study on Fast Numerical Compensation of Hysteresis Measurement of Ferroelectric Film
DONG Wei-jie,CUI Yan,WANG Jing.Study on Fast Numerical Compensation of Hysteresis Measurement of Ferroelectric Film[J].Acta Electronica Sinica,2009,37(11).
Authors:DONG Wei-jie  CUI Yan  WANG Jing
Affiliation:DONG Wei-jie1,2,CUI Yan2,WANG Jing1(1.Department of Electronic Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China,2.Key Laboratory for Micro/Nano Technology and System of Liaoning Province,China)
Abstract:The effect of leak resistance and linear capacitance must be compensated in the hysteresis measurement of ferroelectric film.This paper adopted improved Sawyer-Tower circuit and analyzed the influence to the spontaneous polarization introduced by leak resistance and linear capacitance.It was found that in sinusoidal electric field the leak resistance added an odd symmetrical voltage component to polarized voltage about the saturated polarization point,and linear capacitance brought in an even symmetrical vo...
Keywords:Sawyer-Tower  hysteresis loop  ferroelectric thin film  numerical compensation  Sawyer-Tower
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