[Pw_forum] tot_charge in nano structures

[Zara Nosh]

Dear all,
Thanks for reading it.
I would like to add some charge to graphene layer by adding tot_charge in
SYSTEM window.
My problem is energy convergence versus vacuum, it isn't converge  even at
high vacuum (~30Ang and more), is there any trick to solve this problem?
Thank you,
Zara
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