Direct Evidence for Multiferroic Magnetoelectric Coupling in 0.9BiFeO3-0.1BaTiO3

Anar Singh; Vibhav Pandey; R. K. Kotnala; Dhananjai Pandey

doi:10.1103/PhysRevLett.101.247602

Direct Evidence for Multiferroic Magnetoelectric Coupling in 0.9BiFeO3-0.1BaTiO3

Materials Science 2009-11-13 v1 Other Condensed Matter

Authors: Anar Singh , Vibhav Pandey , R. K. Kotnala , Dhananjai Pandey

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Abstract

Magnetic, dielectric and calorimetric studies on 0.9BiFeO3-0.1BaTiO3 indicate strong magnetoelectric coupling. XRD studies reveal a very remarkable change in the rhombohedral distortion angle and a significant shift in the atomic positions at the magnetic Tc due to an isostructural phase transition. The calculated polarization using Rietveld refined atomic positions scales linearly with magnetization. Our results provide the first unambiguous evidence for magnetoelectric coupling of intrinsic multiferroic origin in a BiFeO3 based system.

Keywords

multiferroic ferroelectric magnetic structure

Cite

@article{arxiv.0810.5418,
  title  = {Direct Evidence for Multiferroic Magnetoelectric Coupling in 0.9BiFeO3-0.1BaTiO3},
  author = {Anar Singh and Vibhav Pandey and R. K. Kotnala and Dhananjai Pandey},
  journal= {arXiv preprint arXiv:0810.5418},
  year   = {2009}
}

Comments

14 pages including 5 figures (Accepted in PRL)

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