Pressure-induced insulator-metal transition in EuMnO3

R. Qiu; E. Bousquet; A. Cano

doi:10.1088/1361-648X/aa75be

Pressure-induced insulator-metal transition in EuMnO3

Computational Physics 2017-06-30 v2 Materials Science

Authors: R. Qiu , E. Bousquet , A. Cano

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Abstract

We study the influence of external pressure on the electronic and magnetic structure of EuMnO3 from first-principles calculations. We find a pressure-induced insulator-metal transition at which the magnetic order changes from A-type antiferromagnetic to ferromagnetic with a strong interplay with Jahn-Teller distortions. In addition, we find that the non-centrosymmetric E*-type antiferromagnetic order can become nearly degenerate with the ferromagnetic ground state in the high-pressure metallic state. This situation can be exploited to promote a magnetically-driven realization of a non-centrosymmetric (ferroelectric) metal.

Keywords

metal-insulator transition multiferroic magnetic phase transitions

Cite

@article{arxiv.1702.04607,
  title  = {Pressure-induced insulator-metal transition in EuMnO3},
  author = {R. Qiu and E. Bousquet and A. Cano},
  journal= {arXiv preprint arXiv:1702.04607},
  year   = {2017}
}

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