Coexistence of ferroelectric triclinic phases in highly strained BiFeO 3 films

Zuhuang Chen, S. Prosandeev, Z. L. Luo, Wei Ren, Yajun Qi, C. W. Huang, Lu You, C. Gao, I. A. Kornev, Tao Wu, Junling Wang, P. Yang, T. Sritharan, L. Bellaiche, Lang Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

Two tilted triclinic phases were found via synchrotron x-ray diffractions in the mixed-phase regions of highly strained BiFeO3 films. First-principles calculations suggest that these two triclinic phases originate from a phase separation of a single monoclinic state accompanied by elastic matching between the two phase-separated states and further suggest that the ease of phase transition between these two energetically close phases is responsible for the large piezoelectric responses observed in Zhang, Nat. Nano.10.1038/nnano.2010.265 6, 98 (2011).

Original languageEnglish (US)
Article number094116
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number9
DOIs
StatePublished - Sep 23 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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