Sorry I only just saw this email; please remember to "reply All" so that
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> Thanks. But except the PBC imposed on transverse direction, I need
> attach the lead on longitude direction. So I want the transverse size
> of sample to be finite.
>
Ah I see.
Hi,
> I want to create a graphene-like system with periodic BC at transverse
> direction. I’m following
>
> the discussion at
> https://www.mail-archive.com/kwant-discuss@kwant-project.org/msg00036.html.
>
>
>
If you only want 1 direction to have periodic boundary conditions (and
finite in
