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Philosophical Magazine Volume 90, 2010 - Issue 1-4: Phase Transformations, Microstructure Evolution and Deformation
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Original Articles

Phase-field model of multiferroic composites: Domain structures of ferroelectric particles embedded in a ferromagnetic matrix

P.P. Wu Department of Physics, University of Science and Technology Beijing, Beijing 100083, China; Department of Material Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USACorrespondence[email protected]
,
X.Q. Ma Department of Physics, University of Science and Technology Beijing, Beijing 100083, China
,
J.X. Zhang Department of Material Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
&
L.Q. Chen Department of Material Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
Pages 125-140 | Received 19 Jan 2009, Accepted 12 Jul 2009, Published online: 15 Jan 2010
 
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Abstract

The ferroelectric domain structures in 1-3 type bulk magnetoelectric composites were studied using the phase-field method. The ferroelectric polarization distributions in triangle, square, circle, and other polygons-shaped rods embedded in a ferromagnetic matrix were obtained. The influences of ferroelectric particle size and symmetry and the surrounding magnetic phase medium on the stability of double vortex structures are discussed.

Acknowledgements

The authors are grateful for the financial support by the National Science Foundation under the grant number DMR-0507146 and DMR-0820404.

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