Electronic ferroelectricity and magneto-electric effect in phase separated magnetic oxidesElectronic ferroelectricity and magneto-electric effect in phase separated magnetic oxides

Abstract

We consider phase separated states in magnetic oxides (MO) thin films. We show that these states have a non-zero electric polarization. Moreover, the polarization is intimately related to a spatial distribution of magnetization in the film. Polarized states with opposite polarization and opposite magnetic configuration are degenerate. An external electric field removes the degeneracy and allows to switch between the two states. So, one can control electric polarization and magnetic configuration of the phase separated MO thin film with the external electric field.

arXiv comment9 pages, 7 figures

References in corpus (18)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in $L{a}_{1-x}{A}_{x}Mn{O}_3$
• Influence of strain on magnetization and magnetoelectric effect in La0.7A0.3MnO3 / PMN-PT(001) (A = Sr; Ca)
• Multiferroicity due to charge ordering
• Origin of the magnetoelectric coupling effect in Pb(Zr0.2Ti0.8)O3/La0.8Sr0.2MnO3 multiferroic heterostructures
• Bulk magnetoelectricity in the hexagonal manganites and ferrites
• Double-exchange via degenerate orbitals
• Double-exchange model: phase separation versus canted spins
• Theory of Insulator Metal Transition and Colossal Magnetoresistance in Doped Manganites
• Nanoscale Phase Separation in Colossal Magnetoresistance Materials: A Lesson for the Cuprates?
• Tuning the Competition between Ferromagnetism and Antiferromagnetism in a Half-doped Manganite through Magnetoelectric Coupling
• Microscopic model for the ferroelectric field effect in oxide heterostructures
• Dynamical Mean Field Study of Model Double-Exchange Superlattices
• Doped orbitally-ordered systems: another case of phase separation
• Nanoscale phase separation in manganites
• Electronic and Magnetic Properties of ${\mathrm{RMnO}}_3/{\mathrm{AMnO}}_3$ Heterostructures
• Electron gas at the interface between two antiferromagnetic insulating manganites
• Stripe structures in phase separated magnetic oxides