Effect of Scaling on Passive Voltage Amplification in FE-DE Hetero Structure

In this article, we have explored effect of scaling length on passive voltage amplification in hetero structure. We have studied effect of scaling on ferroelectric capacitor, reducing the length of capacitor leads to reduction in span of negative capacitance region, which can be authenticated by charge, voltage and energy landscape curves. Also, reducing the length of heterostructure leads to decrease in flatness of energy landscape which indicates decrease in capacitance of heterostructure, which is also responsible for reduction of voltage amplification in heterostructure. Further we have studied dynamic response of hetero structure by applying a input triangular pulse (Vs) of 4 V (peak amplitude) (0V → 4V → 0V) and 100 MHz frequency. Results clearly indicated absolute voltage amplification is obtained in heterostructure. Also, it has been observed scaling the length of heterostructure leads to decrease in passive voltage amplification heterostructure.