Magneto-electric effect in doped magnetic ferroelectrics
arXiv:1801.03114 · doi:10.1103/PhysRevB.96.024204
Abstract
We propose a model of magneto-electric effect in doped magnetic ferroelectrics. This magneto-electric effect does not involve the spin-orbit coupling and is based purely on the Coulomb interaction. We calculate magnetic phase diagram of doped magnetic ferroelectrics. We show that magneto-electric coupling is pronounced only for ferroelectrics with low dielectric constant. We find that magneto-electric coupling leads to modification of magnetization temperature dependence in the vicinity of ferroelectric phase transition. A peak of magnetization appears. We find that magnetization of doped magnetic ferroelectrics strongly depends on applied electric field.
10 pages, 6 figures
References in corpus (4)
- Two magnetic regimes in doped ZnO corresponding to a dilute magnetic semiconductor and a dilute magnetic insulator
- Decisive role of oxygen vacancy in ferroelectric vs. ferromagnetic Mn-doped BaTiO3 thin films
- Electric field control of magnetic properties and magneto-transport in composite multiferroics
- Competition of the Coulomb and hopping based exchange interactions in granular magnets