Multiferroics Properties in BiFeO3/ CoFe2O4 Heterostructures Thin films Deposited on (111) SrTiO3.

The multiferroic properties of BiFeO₃ - CoFe₂O₄ (BFO-CFO) heterostructures thin film grown on (111) SrTiO3 (STO) substrates by employing pulsed laser deposition (PLD) method, have been studied.X ray diffraction analysis reveals the presence of BFO and CFO in two separate phases. The heterostructures BFO/CFO/STO(111) thin films show well - shaped hysteresis loop with saturated magnetization and coercive field, which are much larger than pure BFO/STO thin film. The frequency dependent dielectric anomalies in BFO-CFO multilayer are attributed to the interfacial effect across the presence of CFO as a separate phase embedded in BFO matrix. [ABSTRACT FROM AUTHOR]