Progress in Fe3O4-based multiferroic heterostructures

Fe3O4 is an interesting candidate of the devices that demand nanoscale geometries, additionally offering novel functionalities based on its distinct properties. Furthermore, Fe3O4 shows unique electronic and magnetic characteristics, which come from the complicated electron-electron and electron-phonon interactions that involve the interplay of interaction, exchange orbital and spin degrees of freedom. Different Fe3O4-based multiferroic heterostructures can be developed by exploiting epitaxial strain, charge, oxygen vacancy or composition gradients. The advantage of the Fe3O4-based multiferroic heterostructures include the spin filters for data storage and spatial light modulators for optical switching. (C) 2018 Elsevier B.V. All rights reserved.