Re-analysing the phase sequence in Eu0.8Y0.2MnO3

J. Agostinho Moreira; A. Almeida; W. S. Ferreira; M. R. Chaves; S. M. F. Vilela; P. B. Tavares

Re-analysing the phase sequence in Eu0.8Y0.2MnO3

Materials Science 2009-04-01 v1 Strongly Correlated Electrons

Authors: J. Agostinho Moreira , A. Almeida , W. S. Ferreira , M. R. Chaves , S. M. F. Vilela , P. B. Tavares

Abstract

To clarify the controversy concerning the ferroelectricity of the lower temperature magnetic phases of Eu0.8Y0.2MnO3, hence its multiferroic character, we have studied in detail the temperature dependence of the electric polarization. The existence of a spontaneous polarization in 30K < T < 22K, provides clear evidence for the ferroelectric character of the re-entrant magnetic phase, stable in that temperature range. Both lower temperature magnetic phases allow easily-induced electric polarization, which actually mask any spontaneous polarization.

Keywords

multiferroic ferroelectric thin films magnetization

Cite

@article{arxiv.0903.5471,
  title  = {Re-analysing the phase sequence in Eu0.8Y0.2MnO3},
  author = {J. Agostinho Moreira and A. Almeida and W. S. Ferreira and M. R. Chaves and S. M. F. Vilela and P. B. Tavares},
  journal= {arXiv preprint arXiv:0903.5471},
  year   = {2009}
}

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11 pages, 4 figures, submitted to Phys. Rev. Letters

Re-analysing the phase sequence in Eu0.8Y0.2MnO3

Abstract

Keywords

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