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Structural, Magnetic, and Electrical Properties of BiFe1-xMnxO3 Thin Films

Published online by Cambridge University Press:  31 January 2011

Danilo G Barrionuevo
Affiliation:
danilo_23h@hotmail.comdanilo.barrionuevo@upr.edu
Surinder P Singh
Affiliation:
surinder.singh@upr.edu, Mayaguez, Puerto Rico
Maharaj S. Tomar
Affiliation:
maharajs.tomar@upr.edu, University of Puerto Rico, Department of Physics, Mayaguez, Puerto Rico
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Abstract

We synthesized BiFe1-xMnxO3 (BFMO) for various compositions by sol gel process and thin films were deposited by spin coating on platinum Pt/Ti/SiO2/Si substrates. X-ray diffraction shows all the diffraction planes corresponding to rhombohedrally distorted perovskite BiFeO3 structure. The absence of any impurity phase in the films suggests the incorporation Mn ion preferentially to Fe site in the structure for low concentration. Magnetic measurements reveal the formation of ferromagnetic phase at room temperature with increased Mn substitution. On the other hand, ferroelectric polarization decreases with increasing Mn ion concentration. Raman studies suggest the dopant induced structural distortion.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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