Growth and Investigation of Heterostructures Based on Multiferroic BiFeO₃

Abstract

We report heteroepitaxial growth of multiferroic BiFeO 3 thin films by RF magnetron sputtering on lattice-matched SrTiO3 substrates, as well as preparation and electrical properties of the heterostructures formed by growing BiFeO 3 thin films on highly conductive LaNiO 3 films and n-Si substrates. Nonlinear and rectifying current-voltage (I-U ) characteristics were revealed for the heterojunctions in a wide temperature range (T = 78-300 K).