[Pw_forum] self consistency does not converge

[Vivek Ranjan]

Hello,

I am studying a system with elongated cell on one direction. I am using
"local-TF" for mixing_mode. However, the system does not converge. It does
4 dynamics step and then the self consistency error becomes fixed (does
not change for 100 steps). I am using "damp-pr" for dynamics.

I tried various things like dt = 20 - 100, damp-pr and damp-w, mixing beta
from 0.05 - 0.3. I get into the same condition everytime.

The system is not metallic.

Thanks,

Vivek Ranjan
NCSU