Site-specific spectroscopic measurement of spin and charge in (LuFeO3) m /(LuFe2O4)1 multiferroic superlattices

Understanding the inner workings of complex magnetoelectric multiferroics remains a challenge, as macroscopic techniques characterize average responses rather than the role of individual iron centers. Here, the authors reveal the origin of high-temperature magnetism in multiferroic superlattices.