Experimental evidence for an intermediate phase in the multiferroic YMnO3

G. Nénert; M. Pollet; S. Marinel; G. R. Blake; A. Meetsma; T. T. M. Palstra

doi:10.1088/0953-8984/19/46/466212

Experimental evidence for an intermediate phase in the multiferroic YMnO3

Materials Science 2009-11-11 v3

Authors: G. Nénert , M. Pollet , S. Marinel , G. R. Blake , A. Meetsma , T. T. M. Palstra

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Abstract

We have studied YMnO $_{3}$ by high-temperature synchrotron X-ray powder diffraction, and have carried out differential thermal analysis and dilatometry on a single crystal sample. These experiments show two phase transitions at about 1100K and 1350K, respectively. This demonstrates the existence of an intermediate phase between the room temperature ferroelectric and the high temperature centrosymmetric phase. This study identifies for the first time the different high-temperature phase transitions in YMnO $_{3}$ .

Keywords

ferroelectric crystal growth and phase transitions

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@article{arxiv.cond-mat/0601547,
  title  = {Experimental evidence for an intermediate phase in the multiferroic YMnO3},
  author = {G. Nénert and M. Pollet and S. Marinel and G. R. Blake and A. Meetsma and T. T. M. Palstra},
  journal= {arXiv preprint arXiv:cond-mat/0601547},
  year   = {2009}
}

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10 pages 5 figures. New version, Additional data, Journal of Physics: Condensed Matter, in Press

Experimental evidence for an intermediate phase in the multiferroic YMnO3

Abstract

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