Phase transitions, phase coexistence, and piezoelectric switching behavior in highly strained bifeo3 films

  • C. Beekman
  • , W. Siemons
  • , T. Z. Ward
  • , M. Chi
  • , J. Howe
  • , M. D. Biegalski
  • , N. Balke
  • , P. Maksymovych
  • , A. K. Farrar
  • , J. B. Romero
  • , P. Gao
  • , X. Q. Pan
  • , D. A. Tenne
  • , H. M. Christen

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

Highly strained BiFeO3 films transition into a true tetragonal state at 430 °C but remain polar to much higher temperatures (∼800 °C). Piezoelectric switching is only possible up to 300 °C, i.e., at temperatures for which strain stabilizes the stripe-like coexistence of multiple polymorphs.

Original languageEnglish
Pages (from-to)5561-5567
Number of pages7
JournalAdvanced Materials
Volume25
Issue number39
DOIs
StatePublished - Oct 18 2013

Keywords

  • BiFeO
  • ferroelectric thin films
  • multiferroics
  • phase transitions
  • piezoelectric switching

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