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Advances in Condensed Matter Physics
Volume 2012 (2012), Article ID 824643, 15 pages
http://dx.doi.org/10.1155/2012/824643
Review Article

Current Status of Magnetoelectric Composite Thin/Thick Films

1Functional Ceramics Group, Korea Institute of Materials Science (KIMS), Gyeongnam, Changwon 641-831, Republic of Korea
2School of Materials Engineering, Inha University, Incheon 402-751, Republic of Korea

Received 19 September 2011; Accepted 2 December 2011

Academic Editor: Vladimir Petrov

Copyright © 2012 Rahul C. Kambale et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Here we review the current status of magnetoelectric (ME) multiferroics and ME composite thin/thick films. The magnitude of ME coupling in the composite systems is dependent upon the elastic coupling occurring at the interface of piezoelectric and magnetostrictive phases. The multiferroic ME films in comparison with bulk ME composites have some unique advantages and show higher magnitude of ME response. In ME composite films, thickness of the films is one of the important factors to have enough signal. However, most of all reported ME nanocomposite structured films in literature are limited in overall thickness which might be related to interface strain resulting from difference in thermal expansion mismatch between individual phases and the substrate. We introduced noble ME composite film fabrication technique, aerosol deposition (AD) to overcome these problems. The success in AD fabrication and characterization of ME composite films with various microstructure such as 3-2, 2-2 connectivity are discussed.