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Thermodynamic aspects of epitaxial self-assembly and magnetoelectric response in multiferroic nanostructures

Published online by Cambridge University Press:  31 January 2011

Julia Slutsker ,
Zhuopeng Tan ,
Alexander L. Roytburd  and
Igor Levin
Julia Slutsker*
Affiliation:
Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
Zhuopeng Tan
Affiliation:
Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899; and Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
Alexander L. Roytburd
Affiliation:
Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
Igor Levin
Affiliation:
Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
*
a) e-mail: julias@nist.gov
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Abstract

A thermodynamic approach was used to describe the formation and magnetoelectric response of composite multiferroic films. Experimental and theoretical results that address the origins of different phase morphologies in epitaxial spinel-perovskite nanostructures grown on differently oriented substrates are presented. A theoretical model of magnetoelectric coupling in multiferroic nanostructures that considers a microscopic mechanism of magnetization in single-domain magnetic nanorods is described. This model explains a discontinuous electromagnetic coupling, as observed experimentally, and predicts a hysteretic behavior of magnetization under external electric fields.

Keywords

Self-assemblyFerroelectricMagnetic
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 8 , August 2007 , pp. 2087 - 2095
Copyright
Copyright © Materials Research Society 2007

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References

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