| Re: IV curve Graphene ( No.1 )|
- Date: 2016/12/26 17:55
- Name: T. Ozaki
I am not sure whether your calculation is relevant to physics or numerical problem.
If the cause is the latter, your problem may be solved by using the restart files.
You increase the bias voltage from 0 step by step.
So when you go to the next bias voltage, you have the restart files calculated at one step
before. Then, please use the restart file for the next calculation. At higher bias voltage,
in many cases the calculation tends to converge to a unphysical state. To avoid the situation,
one can start a proper initial guess for charge density distribution. In fact a proper guess
can be obtained by the restart files generated with the calculation at one-step before.