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, Long-qing Chen, R. Ramesh

Research output: Contribution to journalArticle

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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

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domain wall
stress distribution
microscopy
thermodynamics
physics
thin films
simulation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Cruz, M. P., Chu, Y. H., Zhang, J. X., Yang, P. L., Zavaliche, F., He, Q., ... Ramesh, R. (2007). Strain control of domain-wall stability in epitaxial BiFeO3 (110) films. Physical Review Letters, 99(21), [217601]. https://doi.org/10.1103/PhysRevLett.99.217601
Cruz, M. P. ; Chu, Y. H. ; Zhang, J. X. ; Yang, P. L. ; Zavaliche, F. ; He, Q. ; Shafer, P. ; Chen, Long-qing ; Ramesh, R. / Strain control of domain-wall stability in epitaxial BiFeO3 (110) films. In: Physical Review Letters. 2007 ; Vol. 99, No. 21.
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Cruz, MP, Chu, YH, Zhang, JX, Yang, PL, Zavaliche, F, He, Q, Shafer, P, Chen, L & Ramesh, R 2007, 'Strain control of domain-wall stability in epitaxial BiFeO3 (110) films', Physical Review Letters, vol. 99, no. 21, 217601. https://doi.org/10.1103/PhysRevLett.99.217601

Strain control of domain-wall stability in epitaxial BiFeO3 (110) films. / Cruz, M. P.; Chu, Y. H.; Zhang, J. X.; Yang, P. L.; Zavaliche, F.; He, Q.; Shafer, P.; Chen, Long-qing; Ramesh, R.

In: Physical Review Letters, Vol. 99, No. 21, 217601, 20.11.2007.

Research output: Contribution to journalArticle

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AU - Chu, Y. H.

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AU - Zavaliche, F.

AU - He, Q.

AU - Shafer, P.

AU - Chen, Long-qing

AU - Ramesh, R.

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AB - 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.

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Cruz MP, Chu YH, Zhang JX, Yang PL, Zavaliche F, He Q et al. Strain control of domain-wall stability in epitaxial BiFeO3 (110) films. Physical Review Letters. 2007 Nov 20;99(21). 217601. https://doi.org/10.1103/PhysRevLett.99.217601