Asymmetry of Polarization Reversal and Current-Voltage Characteristics of PtPZT-FilmPt : TiSiO2Si-Substrate Structures

الملخص EN

The characterization of the asymmetries of bipolar charge-voltage and current-voltage loops of polarization reversal and unipolar current-voltage curves for Pt/PZT-film/Pt:Ti/SiO2/Si-substrate systems was performed in the dynamic mode.

The asymmetry of local deformation-voltage loops was observed by piezoresponse force microscopy.

The comparison of the dependences of introduced asymmetry factors for the bipolar charge-voltage and current-voltage loops and unipolar current-voltage curves on drive voltage indicates the interconnection of ferroelectric and electrical space charge transfer asymmetries.