Journal Article 2D oxides EMI shielding efficiency Poisson's ratio Research Support, Non-U.S. Gov't Review aligned graphene sheets anomalous mechanical properties antiphase boundary carbon materials dielectric constant domain wall electrical conductivity electromagnetic interference shielding electron holography electronic structure energy-filtered image ferroelectric material ferrotoroidic order graphene metamaterials in situ TEM magnetoelectric coupling memristive systems multiferroic materials multiferroics oxygen vacancies physical sensing polarization-mediated properties polymer nanocomposite resistive switching