Dear Sergey, That seems to be a bug in gauge that occurs when there are no hoppings within the lead unit cell. As a workaround I recommend to add hoppings connecting different 1D leads that have a magnitude of 0. I've opened an issue to track that: https://gitlab.kwant-project.org/kwant/kwant/-/issues/388
Best, Anton On Wed, 23 Sep 2020 at 17:44, Sergey Slizovskiy <ser...@gmail.com> wrote: > > Dear Christoph, > Here is the minimal example giving a error I described. The system > is a 3-layer graphene and I add a couple of vertical 1D chains with > small hopping to the > main sample to model the STS tip. > Thank you, > Sergey > > > On 23/09/2020 15:52, Christoph Groth wrote: > > Sergey Slizovskiy wrote: > > > >> I am having a error with "gauge" when I am adding 1D leads (Chains) > >> to my 3D system. (I have both Chain leads, where I do not need gauge, > >> of course, > > Could you please provide a minimal self-contained script that allows to > > reproduce the problem? > > > > Christoph > > > > >
