[摘要]:The dielectric and ferroelectric properties of (1-z) (Sr0.7Bi0.2)TiO3-z(Na0.5Bi0.5)TiO3 solid solutions with z=0.65-1 are studied. High remnant polarization of similar to 51 mu C/cm(2) with a coercive field of 50 kV/cm, and a dielectric constant of simila |