Hi I'm trying to study semiconductor heterostructure and just new to this nice simulation code.

To get some sense how this tool work, I read the aestimo.py and start playing Aestimo_tutorial1.ipynb.

Describe the bug
However, I found Structure given next to the "Modeling a structure" is not sufficient for the model (e.g. vmin, vmax, dop_profile ... are omitted).
And also the computation scheme 3 is not available (according to the aestimo.Poisson_Schrodinger, scheme 1,3,4,5,6 is not available)
I tried scheme 2 but it wasn't working...

To Reproduce
Steps to reproduce the behavior:

1. I appendend path and import aestimo.py
   

2. I modified the structure. Added vmax, vmin, modified materials from 7x5 matrix to 7x7 matrix, ...
   

3. Solver didn't work. So I changed computation scheme to 2 but it still not worked...
   
   

Laptop (please complete the following information):

• OS: Windows 11 Home
• Browser: chrome
• Version : 23H2