Strain control of domain-wall stability in epitaxial BiFeO3 (110) films

M. P. Cruz, Y. H. Chu, J. X. Zhang, P. L. Yang, F. Zavaliche, Q. He, P. Shafer, L. Q. Chen, R. Ramesh

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

We have studied the stability of domains and domain walls in multiferroic BiFeO3 thin films using a combination of piezoelectric force microscopy and phase-field simulations. We have discovered that a film-substrate misfit strain may result in a drastically different thermodynamic stability of two parallel domain walls with the same orientation. A fundamental understanding of the underlying physics, the stress distribution in a domain structure, leads to a novel approach to control the ferroelastic domain stability in the multiferroic BiFeO3 system.

Original languageEnglish (US)
Article number217601
JournalPhysical review letters
Volume99
Issue number21
DOIs
StatePublished - Nov 20 2007

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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