TSPC/DC Measurements on Barium Titanate

Abstract

Thermally-stimlated polarizationldepolar- ization ourrent (TSPCIDC) meamrements were made on high-prity doped and undopod BaTi03 as a function of applied field, heating rate, dopant level, and &:Ti ratio. The form of the TSPCIOC curves is dependent upon both the resistive and ferroeleotric properties of BaTiO3. spectra, current peaks are exhibited due to the change in in magnitude and direction of the spontaneous polarization with changing crystal structure. In particular, whether the phase transition is first or seoond order influsnaes the existence and magnitude of the current peaks.