Preparation of Barium Titanate / Strontium Titanate Nanocube Accumulation Ceramics and Their Dielectric Property

摘要

The barium titanate (BaTiO_3, BT) epitaxially coated strontium titanate (SrTiO_3, ST) (BT/ST) nanocube accumulation ceramics were successfully prepared by a sorbothermal method, with epitaxial interface between ST and BT, and as reference, the BT/BT nanocube accumulation ceramics were also preapred. These dielectric properties were measured for the both accumulation ceramics, and it was clearly obserbed that there was significiant difference between BT/ST andBT/BT nanocube accumulation ceramics in the dielectric properties under low and high electric fields, and the origin of the result was discussed.