Hi Dripto, The correct approach to implement that is to do the following: 1. add a sufficient number of sites from the square lattice to the scattering region, so that the lead may be attached to those (this should amount to 1 unit cell of the lead). 2. manually connect those sites to the honeycomb lattice. Since there are too many possibilities to do so, there's no way to make this choice automatically. 3. attach the lead as usual using Builder.attach_lead.
Best, Anton On Thu, Oct 19, 2017 at 8:31 PM, Dripto Debroy <driptodeb...@gmail.com> wrote: > Hello all, > > I am hoping to use KWANT to model a graphene flake with two metal leads. The > issue I am running in to is figuring out how to connect leads which have a > square lattice and graphene which has a honeycomb lattice. Is this something > that KWANT can handle? I was unable to find any documentation on mixing > lattice types and modeling heterojunctions in general. > > Thanks for your help, > Dripto
