Dear Weiyuan,

at the moment, there is no ready-to-use function to do that in kwant. We
are right now planning a feature set for kwant 2.0, where this will be
definitely included (you can have a look at our kwant-devel mailing list
if you want to keep updated).

Best,

Michael

On 09-09-15 06:45, Weiyuan Tong wrote:
> Dear authors,
> Can we plot the band structure of a system with periodical bondary
> conditions in y direction? For example, it is easy for us to plot the
> band structure of a graphene nanoribbon, however, for a bulk
> graphene(infinite in y direction) can we plot the band structure using
> kwant?
> Best wishes,
> Weiyuan Tong