Hi James, Most likely the reason is the incorrect selection of physical parameters (you're basically not in the regime where the Landau levels would be protected). Plus you seem to have a lower chemical potential in the leads than in the scattering region. Hope that helps, Anton On Thu, Feb 4, 2016 at 2:09 AM, james edward hernandez <kibwiw@yahoo.com.ph> wrote:

Hello.

I would like to verify the Landau Levels in the Hall conductance of graphene nanoribbons. The code works for conductance, band structure and Hall conductance, but I would like to know why the plateaus are not visible. Also, I would like to know why the plot of wavefunctions does not return to the existence of edge states, which should be for zigzag graphene nanoribbons.

Attached is the code.

Regards,

James