QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: mansi on July 8, 2019, 20:50

Title: electrode not perfect
Post by: mansi on July 8, 2019, 20:50

Respected Quantumwise Team

when I build the device the electrode breaks show. How can build the perfect electrode in device.

please suggest to me.


Thanks

Title: Re: electrode not perfect
Post by: Petr Khomyakov on July 8, 2019, 21:48

Perfect electrode means periodic electrode, so that you will have to attach a semiinfinite periodic structure to your carbon cones on the left and right side of the point contact to be able to build a device configuration. 

Title: Re: electrode not perfect
Post by: mansi on July 9, 2019, 07:59

Respected Quantumwise Team

How can build the semiinfinite periodic structure of carbon cones  electrode in device.

please suggest to me.


Thanks

Title: Re: electrode not perfect
Post by: Petr Khomyakov on July 9, 2019, 09:40

That is totally up to you how to build it. I believe there is no way of making perfect periodic cone without breaking it - this is what QATK did for you. If you want a smooth transition between the scattering/central region and the electrodes, you have to decide on what kind of electrodes you want to attach to the central region. 

Title: Re: electrode not perfect
Post by: Anders Blom on July 19, 2019, 13:01

I guess you could use a periodic carbon nanotube for the electrodes - the cones should only be in the central region.