Investigation of exchange bias in 0.1MFe2O4/0.9BiFeO3 (M=Co, Cu, Ni) nanocomposite

► Exchange bias effect in ferroelectric antiferromagnet (FEAF)/ferromagnet (FM) nanocomposites. ► Exchange bias effect is only observed in the 0.1CuFe2O4/0.9BiFeO3 nanocomposite. ► Lower saturation magnetization is important for producing exchange bias in FEAF/FM system.