Hybridization-controlled charge transfer and induced magnetism at correlated oxide interfaces.

ABSTRACT: At interfaces between conventional materials, band bending and alignment are classically controlled by differences in electrochemical potential. Applying this concept to oxides in which interfaces can be polar and cations may adopt a mixed valence has led to the discovery of novel two-dimensional states between simple band insulators such as LaAlO₃ and SrTiO₃. However, many oxides have a more complex electronic structure, with charge, orbital and/or spin orders arising from strong Coulomb interactions between transition metal and oxygen ions. Such electronic correlations offer a rich playground to engineer functional interfaces but their compatibility with the classical band alignment picture remains an open question. Here we show that beyond differences in electron a

SUBMITTER: Grisolia MN 

PROVIDER: S-EPMC4856211 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature