Enhanced magnetic and dielectric properties of BiFeO₃/BaTiO₃ core-shell nanostructure

摘要

A method involving the combination of solution processing and high-temperature synthesis was developed to fabricate xBiFeO₃/(1-x) BaTiO₃ core-shell nanostructure with x from 0.6 to 1. It was found that both saturation magnetisation and dielectric properties of xBiFeO₃/(1-x)BaTiO₃ nanostructures increase with the content of BaTiO₃ decreasing. Interestingly, the improved magnetic and dielectric properties were found in 0.8BFO/0.2BTO nanostructure. The authors attribute the enhancement of magnetic and dielectric properties to the core-shell nanostructure and morphotropic phase boundary in a BiFeO₃/BaTiO₃ nanostructure.