Strain-induced polarization rotation in epitaxial (001) BiFeO3 thin films

  • H. W. Jang
  • , S. H. Baek
  • , D. Ortiz
  • , C. M. Folkman
  • , R. R. Das
  • , Y. H. Chu
  • , P. Shafer
  • , J. X. Zhang
  • , S. Choudhury
  • , V. Vaithyanathan
  • , Y. B. Chen
  • , D. A. Felker
  • , M. D. Biegalski
  • , M. S. Rzchowski
  • , X. Q. Pan
  • , D. G. Schlom
  • , L. Q. Chen
  • , R. Ramesh
  • , C. B. Eom

Research output: Contribution to journalArticlepeer-review

Abstract

Direct measurement of the remanent polarization of high quality (001)-oriented epitaxial BiFeO3 thin films shows a strong strain dependence, even larger than conventional (001)-oriented PbTiO3 films. Thermodynamic analysis reveals that a strain-induced polarization rotation mechanism is responsible for the large change in the out-of-plane polarization of (001) BiFeO3 with biaxial strain while the spontaneous polarization itself remains almost constant.

Original languageEnglish (US)
Article number107602
JournalPhysical review letters
Volume101
Issue number10
DOIs
StatePublished - Sep 4 2008

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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