I am a Research Scholar at BITS Hyderabad, working in the field of Negative Capacitance using Silicon doped HfO2 as the ferroelectric material.

While trying to calibrate the Synopsys TCAD simulation file, I am facing the issue of getting an order of magnitude higher Polarization charge for the P-E Curve. This seems especially off the mark as I am using only Pr, Ps and Fc values in the HfO2 parameter file and not the Landau coeffecients, ie., alpha, beta and gamma. Since I am directly mentioning the Polarization and Electric field values, there should not be any mismatch there.

Also, I am not sure what all Physics Models should be included in the Simulation file for accurate results.

Any help in this regard would help me get over this obstacle and carry on my research work.

Thanks in advance.