Surface bond contraction and its effect on the nanometric sized lead zirconate titanate

Haitao Huang, Chang Q. Sun, Peter Hing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

59 Citations (Scopus)

Abstract

The grain size effect of lead zirconate titanate PbZr1-xTixO3 (PZT, x ≥ 0.6)caused by surface bond contraction has been investigated by using the Landau-Ginsburg-Devonshire (LGD) phenomenological theory. It has been shown that, due to the surface bond contraction, both the Curie temperature and the spontaneous polarization of tetragonal PZT decrease with decreasing grain size. These effects become more significant when the grain size is in the nanometre range. A dielectric anomaly appears with decreasing grain size, which corresponds to a size dependent phase transformation. The ferroelectric critical size below which a loss of ferroelectricity will happen is estimated from the results obtained.
Original languageEnglish
JournalJournal of Physics Condensed Matter
Volume12
Issue number6
DOIs
Publication statusPublished - 14 Feb 2000
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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