curves for varactor investigated at different temperatures.
Schematic diagram of the microwave capacitance measurement.
Response of the capacitance to a rectangular dc voltage pulse (left) and evaluation of the residual voltage that corresponds to the measured capacitance .
Experimental time dependences of the charge relaxation in the FE capacitors and corresponding approximation curves using function (2): (a) Pt electrode-cathode; (b) Cu/Cr electrode-cathode.
Evaluation of the trap-energy levels: Pt “−:” (a) and (b) ; Pt “:” (c) and (d) .
Time constants of the charge relaxation process.
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