X-band frequency response and electromagnetic interference shielding in multiferroic BiFeO_3 nanomaterials

摘要

The presence of electric dipoles, magnetic dipoles and mobile charges is a prerequisite for electromagnetic interference (EMI) shielding materials. Here, we demonstrate that multiferroic compound with incipient ensemble of electric and magnetic dipoles can perform as an EMI shielding material. We synthesized single phase BiFeO_3 nanomaterial and studied complex electromagnetic properties in an X-band frequency region. A shielding effectiveness up to 11 dB with a major contribution from absorption was observed in the BiFeO_3 nanomaterials. An auxiliary functionality of radiation shielding is revealed in the multiferroic BiFeO_3 compound.