QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: dhurba on December 7, 2011, 07:45

Title: calculation of channel length in Graphene junction
Post by: dhurba on December 7, 2011, 07:45

How to calculate the channel length of the graphene junction given under buliders->custom->vnl in ATK 11.8 v ?

Title: Re: calculation of channel length in Graphene junction
Post by: Nordland on December 7, 2011, 10:18

If you open the structure in the builder, you can press two atoms in opposite sides of the channel, and open the z-matrix.
The distance between these two atoms will be a good estimate for the channel length.

Title: Re: calculation of channel length in Graphene junction
Post by: dhurba on December 9, 2011, 05:56

Thanks for the reply..
That means by this method i can calculate the channel width also..
Will that give a correct approximation also..

I am also unable to measure the thickness of the dielectric used under Custom>builders>graphene junction
Can you please help me out

Title: Re: calculation of channel length in Graphene junction
Post by: Nordland on December 9, 2011, 14:25

You open this structure in the builder, and open the spatial region widget. Here you can see the dimension of the dielectric region.
Here you can also alter it.

Using the default structure from the graphene junction the dielectric regions is roughly 3.0 Angstrom.

Title: Re: calculation of channel length in Graphene junction
Post by: dhurba on December 10, 2011, 09:38

Thanks a lot . :)