  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.

Computational Physics;Materials Science