Utilizing the anti-ferromagnetic functionality of a multiferroic shell to study exchange bias in hybrid core–shell nanostructures

Abstract

A three-step method has been employed to synthesize 1D core–shell nanostructures consisting of a ferromagnetic Co₉₀Pt₁₀ (CoPt) core and a La doped multiferroic Bi_0.87La_0.13FeO₃ (BLFO) shell. La doping efficiently removes the secondary impurity phases in the multiferroic shell and exchange interaction gives a significant exchange bias effect demonstrating the anti-ferromagnetic functionality of Bi_0.87La_0.13FeO₃.