Effect of Starting Mn Precursor on the Structural and Ferroelectric Properties of BCT Based Solid Solutions

Abstract

The effect of starting Mn precursor (0.01≤x ≤ 0.04) on the structural and ferroelectric properties of Ba_0.96Ca_0.04Ti_(1−x)Mn_xO₃ samples prepared using conventional solid state reaction route have been investigated. The XRD analysis shows that the samples possess tetragonal structure and are phase pure up to x = 0.02 independent of starting Mn precursor. The samples x = 0.03 and x = 0.04 shows the presence of an additional hexagonal phase. The concentration of additional phase increases with increasing x. The P-E loops were recorded at room temperature showing the ferroelectric behaviour of the samples.

Keywords:

• Lead free
• BaTiO3
• Rietveld refinement
• ferroelectric

Acknowledgements

The authors gratefully acknowledge University Grant Commission, New Delhi for providing financial assistance (F.30-115/2015(BSR)) to carry out this work. The authors would also like to acknowledge Centre for Emerging Life Sciences, GNDU, Amritsar for providing characterisation facilities. One of the authors ‘Aanchal’ would like to acknowledge UGC-BSR for providing fellowship.