I recommend using the PWL command instead of pulse. Also, use the transient command without AC coupling. Furthermore, where is the read duration in the code?

Thank you for your answer. I will change the pulse code to pwl and remove the ac coupling and try to do the simulation. But could you explain what read duration means??

I mean to say, after the write pulse, you need to read the state. whether the drain current increased or decreased for LTP and LTD.

I understand your answer, but I will find out how to check this with TCAD.

Just plot the transient drain current... Id vs time... You will see drain current increment or decrement in time.

Thank you for your response, I will try.

Is this the right way to do it??

Your pulse stream should be like this.

In this paper, it is said that VDS=3V, VGS=-4V in the potentiation operation and incremental pulse(VGS=2) in the depression operation. But in the picture you sent me, negative voltage pulse is used in the depression, but do I misunderstand it??

I'm saying whatever the potentiation or depression voltages are (VDS and VGS), we need to read after that(certain read biases for VDS and VGS). which is not present in your case.

I conducted the research through your advice and got the following results. Am I heading in the right direction??