Electric Field Induced Cubic to Monoclinic Phase Transition in Multiferroic 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 Solid Solution

Rishikesh Pandey; Akhilesh Kumar Singh

doi:10.1063/1.4899058

Electric Field Induced Cubic to Monoclinic Phase Transition in Multiferroic 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 Solid Solution

Materials Science 2015-06-23 v1

Authors: Rishikesh Pandey , Akhilesh Kumar Singh

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Abstract

The results of x-ray diffraction (XRD) studies on 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 solid solution poled at various electric field is presented. After poling, significant value of planar electromechanical coupling coefficient (kP) is observed for this composition having cubic structure in unpoled state. The cubic structure of 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 transforms to monoclinic structure with space group Pm for the poling field greater than equal to 5kV/cm. Large c-axis microscopic lattice strain (1.6 %) is achieved at 30 kV/cm poling field. The variation of the c-axis strain and unit cell volume with poling field show a drastic jump similar to that observed for strain versus electric field curve in (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 and (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3.

Keywords

multiferroic phase transition electric field induced Bi(Ni1/2Ti1/2)O3-PbTiO3 X-ray diffraction lattice strain monoclinic structure

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@article{arxiv.1410.3578,
  title  = {Electric Field Induced Cubic to Monoclinic Phase Transition in Multiferroic 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 Solid Solution},
  author = {Rishikesh Pandey and Akhilesh Kumar Singh},
  journal= {arXiv preprint arXiv:1410.3578},
  year   = {2015}
}

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15 pages, 7 figures, Accepted

Electric Field Induced Cubic to Monoclinic Phase Transition in Multiferroic 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 Solid Solution

Abstract

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