Persistent type-II multiferroicity in nanostructured MnWO4 ceramics

Pascaline Patureau; Remi Dessapt; Philippe Deniard; U-Chan Chung; Dominique Michaub; Michael Josse; Christophe Payen; Mario Maglione

Persistent type-II multiferroicity in nanostructured MnWO4 ceramics

Materials Science 2018-09-06 v1

Authors: Pascaline Patureau , Remi Dessapt , Philippe Deniard , U-Chan Chung , Dominique Michaub , Michael Josse , Christophe Payen , Mario Maglione

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Abstract

We show that the type-II multiferroic properties of bulk MnWO4 are kept in nanostructured ceramics of 50 nm grain size prepared via spark plasma sintering (SPS). This means that ferroelectric polarization is robust against downsizing, which is at variance with standard ferroelectrics like BaTiO3. We ascribe this stability to the spin-driven nature of the ferroe-lectric correlations in type-II multiferroics while it is resulting from lattice distortion in other cases. This may open the way for persistent type-II multiferroicity with no need for external stabilization like substrate-generated strain.

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@article{arxiv.1809.01616,
  title  = {Persistent type-II multiferroicity in nanostructured MnWO4 ceramics},
  author = {Pascaline Patureau and Remi Dessapt and Philippe Deniard and U-Chan Chung and Dominique Michaub and Michael Josse and Christophe Payen and Mario Maglione},
  journal= {arXiv preprint arXiv:1809.01616},
  year   = {2018}
}

Persistent type-II multiferroicity in nanostructured MnWO4 ceramics

Abstract

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