[Kwant] Fw: CNT lead

Can you be more specific? A lead must by definition have a translational symmetry.

I should have explained more accurate. Of course, there is translational symmetry; I meant that CNT cross section is not round anymore. I have attached a .cif file to show what I mean. I'm pretty sure you know how to visualize this structure, but for the ones who don't, they can use visualization softwares like VESTA Bests