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Integrated Ferroelectrics
An International Journal
Volume 124, 2011 - Issue 1
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Original Articles

Magneto-Electric Coupling in PbZr0.53Ti0.47O3/CoFe2O4 Layered Thin Films

N. Ortega Department of Physics, and Institute for Functional Nanomaterials, University of Puerto Rico, San Juan Puerto Rico, 00931-3343
,
Ashok Kumar Department of Physics, and Institute for Functional Nanomaterials, University of Puerto Rico, San Juan Puerto Rico, 00931-3343
,
Carlos Rinaldi Department of Chemical Engineering and Institute for Functional Nanomaterials, University of Puerto Rico, Mayagüez, PR, 00681-9046
&
Ram S. Katiyar Department of Physics, and Institute for Functional Nanomaterials, University of Puerto Rico, San Juan Puerto Rico, 00931-3343
Pages 33-40 | Received 09 Oct 2010, Accepted 29 Oct 2010, Published online: 27 Jun 2011
 
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Abstract

PbZr0.53Ti0.47O3/CoFe2O4 multilayer nanostructures were grown on La0.5Sr0.5CoO3 coated MgO and Pt/TiO2/SiO2/Si substrates by pulsed laser deposition. Ferroelectric polarization decreased slowly in reducing the temperature from 300 to 200 K, with complete collapse of polarization at 100 K, but there was complete recovery of the polarization during heating. At the same time, the temperature dependent remanent magnetization of the multilayer nanostructures showed slow enhancement in the magnitude till 200 K with three-fold increase at 100 K compared to room temperature. Thus the enhancement in remanent magnetization and the decrease in polarization on lowering the temperature suggest that dynamic the magnetoelectric coupling existed in the multilayer systems.

Acknowledgments

This work was supported by DOE-DE-FG02-08ER46526 grant.

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