Aging-induced abnormality of dielectric response under dc bias in Ba(Zr, Ti)O3 thin films

  • C. Gao*
  • , J. Yang
  • , X. J. Meng
  • , T. Lin
  • , J. H. Ma
  • , J. L. Sun
  • , J. H. Chu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The dielectric properties of fresh and aged Ba(Zr0.25Ti 0.75)O3 thin films have been investigated. It is found that the aged sample shows a significant decrease in the dielectric constant compared to the fresh one. Furthermore, the aged sample also exhibits abnormal double-peaks-shape butterfly C-V characteristics, which indicates the defect-dipole stabilized domain and/or domain-wall motions. Meanwhile, we found that double-peaks-shape butterfly C-V characteristics become weak and even disappear with increasing of applied electric field and temperature. The present results are discussed in light of the symmetry-conforming principle of point defects.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume104
Issue number1
DOIs
StatePublished - Jul 2011

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