Pyroelectric ceramic composition and multilayered structure therefrom

摘要

A pyroelectric ceramic composition of the general formula: PbZrX(Zn1/3Nb2/3)YTiZO3 wherein X+Y+Z=1 is provided having both of high pyroelectric constant and the second transition temperature below its Curie's temperature. Further, there is provided a multilayered pyroelectric structure comprising a stack of a plurality of layers, each of which has the different composition each to other, of the general formula: PbZrX(Zn1/3Nb2/3)YTiZO3 wherein X+Y+Z=1, where the value of Z is different from each other in the different layers.