Lead magnesium niobate dielectrics for high-field applications

The authors present some preliminary results aimed at exploring the potential of lead magnesium niobate (PMN) as an energy storage dielectric. In particular, relative permittivity and resistivity were studied as a function of electric field. The PMN dielectrics were evaluated as capacitor materials for pulse discharge applications. A series of compositions were prepared and compared to pure and commercial strontium titanate dielectrics. The comparison results are discussed. >