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

M. P. Cruz, Ying-hao Chu*, J. X. Zhang, P. L. Yang, F. Zavaliche, Q. He, P. Shafer, L. Q. Chen, R. Ramesh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

94 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
Article number217601
JournalPhysical Review Letters
Volume99
Issue number21
DOIs
StatePublished - 20 Nov 2007

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