Compact model for PZT ferroelectric capacitors with voltage dependent switching behavior

Chien Wei Wang, Hansol Ku, Cheng Yan Chiu, Sourav De, Bo Han Qiu, Changhwan Shin, Darsen Lu

Research output: Contribution to journalArticlepeer-review

Abstract

A simple network, consisting of a resistor in series with multiple ferroelectric capacitors in parallel, each in series with a dependent voltage source, is constructed to model ferroelectric capacitors. The material parameters based on the Landau-Khalatnikov equation for the lead zinconate titanate (PZT) capacitor are extracted from measured polarization versus electric field characteristics. A compact model is developed to describe the voltage dependence of PZT capacitors, and calibrated to experimental data. Such voltage dependence is attributed to the voltage dependent interaction force between adjacent domains.

Original languageEnglish
Article number055033
JournalSemiconductor Science and Technology
Volume35
Issue number5
DOIs
Publication statusPublished - 2020 May

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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