Author Topic: SET  (Read 123 times)

0 Members and 1 Guest are viewing this topic.

Offline sweta

  • Heavy ATK user
  • ***
  • Posts: 80
  • Country: in
  • Reputation: 0
    • View Profile
SET
« on: July 6, 2019, 09:20 »
Hello everyone,

I want to know how to calculate charge state against gate voltage, and charge state against drain voltage plot for single electron transistor model.

Also,  is it possible to calculate transmission spectrum and IV curve for SET model using ATK-VNL.

Please do reply.
Thanks in advance!

Offline Petr Khomyakov

  • QuantumWise Staff
  • Supreme ATK Wizard
  • *****
  • Posts: 1034
  • Country: dk
  • Reputation: 17
    • View Profile
Re: SET
« Reply #1 on: July 10, 2019, 15:16 »
There is no standard feature of doing it for a single-electron transistor, as QuantumATK considers the electron transport in the coherent regime, dealing with single electron wave functions, not with sequential tunneling. I think you should first decide on the model you want to use for SET, and then see if the parameters of that model can be computed in QuantumATK in one way or the other.

Offline Anders Blom

  • QuantumWise Staff
  • Supreme ATK Wizard
  • *****
  • Posts: 4976
  • Country: dk
  • Reputation: 78
    • View Profile
    • QuantumWise
Re: SET
« Reply #2 on: July 19, 2019, 12:58 »
We used to have a tutorial on this, but it became terribly outdated and hasn't be modernized, due to very low interest in these kinds of simulations. You can see it in the Internet Archive at https://web.archive.org/web/20140409095525/http://www.quantumwise.com:80/documents/tutorials/latest/BenzeneSET/BenzeneSET.pdf. It is probably still possible to run it, although some specific scripts may need small updates, and certainly the GUI looks very different today.

For an example of the results, see https://arxiv.org/pdf/1006.0082.pdf