three electrode device

[abbas]

Dear Sir/Madam

I am trying to make a three electrode device. The code gave me an error saying that "The parameter 'electrodes' must be a sequence containing exactly two BulkConfigurations". but in the manual it was said that we can define three electrodes. would you please let me know how I can define the third electrode?

Thanks

[Anders Blom]

You can only use electrostatic gates in ATK - as in http://quantumwise.com/documents/tutorials/latest/GrapheneDevice/index.html/
Support for 3-terminal devices is planned for 2016 (or so...).