Tutorial 11: bilayer graphene FET

Let us suppose we want to simulate a FET with the channel composed by bilayer graphene, and with the same geometry as that described in the previous tutorial.

The script is actually the same: we have only to pay attention in defining the bilayer graphene instead of graphene, and, if we want to consider the same thickness for the top oxide, the grid along the x direction must end at 10.35 nm, since 0.35 is the inter-layer distance as set by default (acc_tp member of the bilayer_graphene class).
With respect to the previous script, the only changes are highlighted in red.

from NanoTCAD_ViDES import *
rank = MPI.COMM_WORLD.Get_rank()
# I create the grid
xg=nonuniformgrid(array([-10,1,0,0.05,10.35,1]))

BG=bilayer_graphene(50);

acc=0.144;
kF=2*pi/(3*sqrt(3)*acc);

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download script

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