LEFT-HANDED MATERIALS BASED ON FERROMAGNETIC - FERROELECTRIC COMPOSITES

摘要

Novel composites for which both the permeability and the permittivity are negative are of interest for use as "left-handed" materials. We propose the synthesis and characterization of left-handed materials based on bilayers and multilayers of ferromagnetic-ferroelectric phases. Such a layered structure consisting of ferrites and ferroelectrics shows strong magnetoelectric interactions. A magnetoelectric composite based left-handed material device will therefore have unique magnetic and electric field tunability and low microwave losses.