LaFeO3-CoFe2O4 bi-magnetic composite thin films prepared using an all-in-one synthesis technique

•We report a new chemical route to prepare single-layer bi-magnetic composite films.•We prepared a composite LaFeO3-CoFe2O4 film to demonstrate the synthesis technique.•The film is homogeneous and highly crystalline in nature with no impurity phases.•High coercivity value is found despite a large fraction of antiferromagnetic phase.•This new synthesis technique for composite films is low cost as well as scalable.