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Multiferroic BiFeO3/BaTiO3 thin films fabricated by chemical solution deposition technique

Published online by Cambridge University Press:  19 June 2015

Savita Sharma ,
Monika Tomar ,
Ashok Kumar ,
Nitin K. Puri  and
Vinay Gupta
Savita Sharma*
Affiliation:
Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India Department of Applied Physics, Delhi Technological University, Delhi 110042, India
Monika Tomar
Affiliation:
Physics Department, Miranda House, University of Delhi, Delhi 110007, India
Ashok Kumar
Affiliation:
CSIR-National Physical Laboratory, Dr. K.S .Krishnan Marg, New Delhi-110012, India
Nitin K. Puri
Affiliation:
Department of Applied Physics, Delhi Technological University, Delhi 110042, India
Vinay Gupta*
Affiliation:
Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
*
*E-mail Id : savita1234h@gmail.com, drguptavinay@gmail.comContact No. : +91 9811563101
*E-mail Id : savita1234h@gmail.com, drguptavinay@gmail.comContact No. : +91 9811563101
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Abstract

The BiFeO3/BaTiO3 (BFO/BTO) multilayers were deposited on Pt/Ti/SiO2/Si substrates using sol-gel spin coating technique. The electric and magnetic studies on BFO/BTO multilayer structures were carried out for different number of layers. Enhancement in multiferroic properties were seen for all the prepared multilayers as compared to individual BTO and BFO thin films. Maximum value of ferroelectric polarization 71.18 µC/cm2 and saturation magnetization 69.85 emu/cm3 was obtained for multilayer structure having five layers. The observed enhancement in the multiferroic properties of the multilayer system is due to the increased interfacial stress and multiferroic coupling between the alternating layers.

Keywords

ferroelectricsol-gelmagnetic
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1805: Symposium SS/TT – Fabrication and Properties of Oxide Thin Films, Nanostructures and Interfaces for Advanced Applications , 2015 , mrss15-2116222
Copyright
Copyright © Materials Research Society 2015 

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References

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