Dear Kamal,

Did you check the tutorial example over here: http://kwant-project.org/doc/1.1/tutorial/tutorial4 ?
If yes, what exactly is the problem? Did you check that you are trying to delete sites that are at all present in the system?

Best,
Anton

On Mon, Nov 9, 2015 at 9:23 AM, kamal ghosh <kk_ghosh@rediffmail.com> wrote:
Dear all members,
I am trying with a nanodot 10 nm. and lead width 7 nm. to find conductance of the dot under no
crystal defect and also under some missing atoms creating a defect. The system and conductance without
defect is no problem; but I cannot introduce the defect properly in the code and so I cannot get the
conductance. However, in case of quantum wire I have succeeded to build both the defective and not
defective structure and got the conductance. In fact, when the lattice structure is on hexagonal and
bipartite then the problem comes; it is no in case of square lattice. I think I fail to to point out the
location of the atoms in case of spherical dot.
Cheers to all.
K.K.Ghosh
Get your own FREE website, FREE domain & FREE mobile app with Company email.  
Know More >