Electron gas at the interface between two antiferromagnetic insulating manganites

Abstract

We study theoretically the magnetic and electric properties of the interface between two antiferromagnetic and insulating manganites: La0.5Ca0.5MnO3, a strong correlated insulator, and CaMnO3, a band-insulator. We find that a ferromagnetic and metallic electron gas is formed at the interface between the two layers. We confirm the metallic character of the interface by calculating the in-plane conductance. The possibility of increasing the electron gas density by selective doping is also discussed.

6 pages, including 9 figures

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Cited by in corpus (8)

• Towards two-dimensional metallic behavior at LaAlO3/SrTiO3 interfaces
• Metal-insulator transition in $(LaMn{O}_3{)}_{2n}/(SrMn{O}_3{)}_n$ superlattices
• Microscopic model for the ferroelectric field effect in oxide heterostructures
• Effect of strain on the orbital and magnetic ordering of manganite thin films and their interface with an insulator
• Electronic and Magnetic Properties of ${\mathrm{RMnO}}_3/{\mathrm{AMnO}}_3$ Heterostructures
• Spin-orbit effects surfacing on manganites
• Electronic ferroelectricity and magneto-electric effect in phase separated magnetic oxidesElectronic ferroelectricity and magneto-electric effect in phase separated magnetic oxides
• Stripe structures in phase separated magnetic oxides