Weiyuan Tong

2016-02-03 18:00:12 UTC

Dear all,

I want to calculate the conductance and the band structure of a bulk

graphene system.(infinite in y direction) I have checked the source code

for the calculation of band structure.

https://github.com/kwantproject/kwant/blob/7c55b0cb2d0dec163e5483dea8ffdbc88c208397/kwant/physics/dispersion.py

It seems that we can get the sys.cell_hamiltonian and hopping between the

sys.cell_hamiltonian in kwant. In y direction, we can also have

sys.cell_hamiltonian and hopping, then it can be extended to infinite in y

direction: V^\dagger e^{iky} + H + Ve^{-iky}. I am not familiar with kwant

coding. Can anyone help me to write some code lines to do these

calculations? Or you can also change the Tutorial 2.2.3 as an example.

Thanks in advance!

Best wishes

Weiyuan Tong

I want to calculate the conductance and the band structure of a bulk

graphene system.(infinite in y direction) I have checked the source code

for the calculation of band structure.

https://github.com/kwantproject/kwant/blob/7c55b0cb2d0dec163e5483dea8ffdbc88c208397/kwant/physics/dispersion.py

It seems that we can get the sys.cell_hamiltonian and hopping between the

sys.cell_hamiltonian in kwant. In y direction, we can also have

sys.cell_hamiltonian and hopping, then it can be extended to infinite in y

direction: V^\dagger e^{iky} + H + Ve^{-iky}. I am not familiar with kwant

coding. Can anyone help me to write some code lines to do these

calculations? Or you can also change the Tutorial 2.2.3 as an example.

Thanks in advance!

Best wishes

Weiyuan Tong