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Effect of strain and growth morphology on the evolution of the domain structure of ferromagnetic manganites

Published online by Cambridge University Press:  15 March 2011

Holly Miller ,
J. S. Higgins ,
Y. Mukovskii ,
R. L. Greene  and
Amlan Biswas
Holly Miller
Affiliation:
Department of Physics, University of Florida, Gainesville, FL 32611, USA School of Engineering, University of Virginia, Charlottesville, VA 22904, USA
J. S. Higgins
Affiliation:
Center for Superconductivity Research, University of Maryland, MD 20742, USA
Y. Mukovskii
Affiliation:
Moscow State Steel and Alloys Institute, Moscow, Russian Federation
R. L. Greene
Affiliation:
Center for Superconductivity Research, University of Maryland, MD 20742, USA
Amlan Biswas
Affiliation:
Department of Physics, University of Florida, Gainesville, FL 32611, USA
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Abstract

The effect of strain on the surface magnetism of the manganite La0.7Sr0.3MnO3 has been studied as a function of temperature, using magnetic force microscopy. The non- uniform strain distribution in the film leads to a two-phase coexistence between ferromagnetic and non-ferromagnetic phases. This leads to a reduction of the surface curie temperature and the formation of ferromagnetic islands. Methods of controlling this behavior in order to fabricate arrays of magnetic nanodots are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 819: Symposia N/P – Interfacial Engineering for Optimized Properties III , 2004 , N5.7
Copyright
Copyright © Materials Research Society 2004

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