Microscopic origin of large negative magneto-electric coupling in Sr${}_{1/2}$Ba${}_{1/2}$MnO${}_3$

Gianluca Giovannetti, Sanjeev Kumar, Carmine Ortix +2

With a combined ab initio density functional and model Hamiltonian approach we establish that in the recently discovered multiferroic phase of the manganite Sr${}_{1/2}$Ba${}_{1/2}$MnO…