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

Publication Type

Journal Article

Authors

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

DOI

10.1103/PhysRevLett.99.217601

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. © 2007 The American Physical Society.

Journal

Physical Review Letters

Volume

Year of Publication

2007

ISSN

00319007

Notes

cited By 87

Research Areas

Ramesh Lab