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MINT Report Summary

Project ID: 615759
Funded under: FP7-IDEAS-ERC
Country: France

Periodic Report Summary 2 - MINT (Emerging electronic states and devices based on Mott insulator interfaces)

Transition metal oxides possess a broad range of functionalities (superconductivity, magnetism, ferroelectricity, multiferroicity) stemming from the interplay between structural effects and electronic correlations. Recent work has revealed exciting physics at their interfaces, including two-dimensional (2D) conductivity and superconductivity in the electron gas that forms at the interface between two band insulators, LaAlO3 and SrTiO3. To expand the range of possible novel physical properties occurring at oxide interfaces, the MINT project proposes to add a new ingredient, electronic correlations. At interfaces between strongly correlated oxides such as ferromagnetic rare-earth titanates and antiferromagnetic rare-earth nickelates, we have revealed a new magnetic and electronic state in the nickelate, absent from the phase diagram of these materials. In parallel, we have made use of another new ingredient, spin-orbit coupling, to demonstrate a very strong inverse Rashba-Edelstein effect at LaAlO3/SrTiO3 interfaces, allowing the efficient conversion between spin currents and charge current.

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