Interplay of octahedral tilts and polar order in BiFeO3 films

Young Min Kim, Amit Kumar, Alison Hatt, Anna N. Morozovska, Alexander Tselev, Michael D. Biegalski, Ilya Ivanov, Eugene A. Eliseev, Stephen J. Pennycook, James M. Rondinelli, Sergei V. Kalinin, Albina Y. Borisevich*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

Heterointerface stabilization of a distinct nonpolar BiFeO3 phase occurs simultaneously with changes in octahedral tilts. The resulting phase arises via suppression of polarization by a structural order parameter and can thus be identified as anti-ferroelectric (Fe displacements - bottom panel). The phase is metastable and can be switched into a polar ferroelectric state (top panel) under an applied electric bias.

Original languageEnglish (US)
Pages (from-to)2497-2504
Number of pages8
JournalAdvanced Materials
Volume25
Issue number17
DOIs
StatePublished - May 7 2013

Keywords

  • BiFeO
  • multiferroics
  • piezoresponse force microscopy
  • scanning transmission electron microscopy
  • transition metal oxides

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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