Effect of A and B-site substitution with Pb, La and Ti on phase stabilization and multiferroic properties of BiFeO sub(3)

The work presents a comparative study of the effects of divalent (Pb), trivalent (La) and tetravalent (Ti) substituents on the multi-ferroic properties of BiFeO3 (BFO). Each of the substituent was particularly chosen i.e. Pb was chosen to keep the lone pair character which is the similar case as Bi...

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Bibliographic Details
Published in:Journal of alloys and compounds 2015-09, Vol.644, p.893-899
Main Authors: Jaffari, G Hassnain, Samad, Abdus, Iqbal, Asad M, Hussain, Shahzad, Mumtaz, Arif, Awan, M S, Siddique, M, Shah, S Ismat
Format: Article
Language:English
Subjects:
Alloys
Anomalies
Dielectrics
Ferroelectric materials
Lead (metal)
Saturation
Stabilization
Titanium
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Summary:The work presents a comparative study of the effects of divalent (Pb), trivalent (La) and tetravalent (Ti) substituents on the multi-ferroic properties of BiFeO3 (BFO). Each of the substituent was particularly chosen i.e. Pb was chosen to keep the lone pair character which is the similar case as Bi ion. Additionally isovalent La was chosen to achieve single phase by reducing Bi volatization. A systematic reduction in the intensity of the dielectric anomaly peak was observed as a function of Ti concentration which indicates that the anomaly is related to the conductivity and is element specific. Saturation polarization was found to increase as Ti concentration increased from 0% to 10%.
ISSN:0925-8388
DOI:10.1016/j.jallcom.2015.05.065