Strain Engineering a Multiferroic Monodomain in Thin-Film BiFeO3

N. Waterfield Price, A.M. Vibhakar, R.D. Johnson, J. Schad, W. Saenrang, A. Bombardi, F.P. Chmiel, C.B. Eom, and P.G. Radaelli
Phys. Rev. Applied 11, 024035 – Published 13 February 2019
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Abstract

The presence of domains in ferroic materials can negatively affect their macroscopic properties and hence their usefulness in device applications. From an experimental perspective, the measurement of materials comprising multiple domains can complicate the interpretation of the material properties and their underlying mechanisms. In general, BiFeO3 films tend to grow with multiple magnetic domains and often contain multiple ferroelectric- and ferroelastic-domain variants. By growing (111)-oriented BiFeO3 films on an orthorhombic TbScO3 substrate, we are able to overcome this and, by exploiting the magnetoelastic coupling between the magnetic and crystal structures, bias the growth of a given magnetic-, ferroelectric-, and structural-domain film. We further demonstrate the coupling of the magnetic structure to the ferroelectric polarization by showing that the magnetic polarity in this domain is inverted upon 180 ferroelectric switching.

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  • Received 31 August 2018
  • Revised 7 January 2019

DOI:https://doi.org/10.1103/PhysRevApplied.11.024035

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

N. Waterfield Price1,*, A.M. Vibhakar1, R.D. Johnson1,2, J. Schad3, W. Saenrang3,†, A. Bombardi4, F.P. Chmiel1, C.B. Eom3, and P.G. Radaelli1

  • 1Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
  • 2ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom
  • 3Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
  • 4Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom

  • *noah.waterfieldprice@physics.ox.ac.uk
  • Present address: School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand

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Vol. 11, Iss. 2 — February 2019

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