Influence of imperfect surface on properties of ferroelectric thin film

Tianquan Lü, Wenwu Cao

Research output: Contribution to journalConference articlepeer-review

20 Scopus citations


Using the Ginzburg-Landau-Devonshire theory and taking into account structural difference between imperfect surface layer and bulk ferroelectrics, the behavior of ferroelectric thin film coated with two metallic electrodes is studied. The effects of the imperfect surface layer are to reduce effective polarization, produce non-uniform polarization distribution and lower the phase transition temperature. We show that the non-screened depolarization field also makes the polarization distribution more uniform and shifts the hysteresis loop due to the asymmetric nature of thin film-substrate configuration.

Original languageEnglish (US)
Pages (from-to)818-824
Number of pages7
JournalMicroelectronic Engineering
Issue number1-4
StatePublished - Apr 2003
EventIUMRS-ICEM 2002 - Xi an, China
Duration: Jun 10 2002Jun 14 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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