Strain engineering magnetic frustration in perovskite oxide thin films

Carlos Escorihuela-Sayalero; Oswaldo Diéguez; Jorge Íñiguez

doi:10.1103/PhysRevLett.109.247202

Strain engineering magnetic frustration in perovskite oxide thin films

Materials Science 2015-06-05 v1

Authors: Carlos Escorihuela-Sayalero , Oswaldo Diéguez , Jorge Íñiguez

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Abstract

Our first-principles results show that geometric frustration can be induced in thin films of multiferroic BiFeO3. We find that competing magnetic interactions occur in the so-called super-tetragonal phase of this material, which can be grown on strongly-compressive substrates. We show that the frustration level can be tuned by appropriately choosing the substrate; in fact, the three-dimensional spin order gets totally annihilated in a narrow range of epitaxial strains. We argue that the effects revealed here are not exclusive to BiFeO3, and predict that they also occur in multiferroic BiCoO3.

Keywords

strain engineering magnetic frustration perovskite oxide thin films BiFeO3 geometric frustration super-tetragonal phase first-principles multiferroics

Cite

@article{arxiv.1207.6859,
  title  = {Strain engineering magnetic frustration in perovskite oxide thin films},
  author = {Carlos Escorihuela-Sayalero and Oswaldo Diéguez and Jorge Íñiguez},
  journal= {arXiv preprint arXiv:1207.6859},
  year   = {2015}
}

Comments

5 pages with 4 figures embedded. More information at http://www.icmab.es/leem/jorge

Strain engineering magnetic frustration in perovskite oxide thin films

Abstract

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