I have been working on Quantumwise's Atomistix ToolKit along with its user interface Virtual nanolab (VNL) since 2010 and successfully produced and defended my research on the various aspects of nanometer-scale electron transport.
Transiesta doesn't have strong Graphic user interface... I am currently working on Atomistic Tool Kit and Virtual Nanolab..which has Guassian and transiesta both working at backend....I want to know if some other simulation platform is available for nanometer-scale properties
For NEGF calculations you can use nanoMOS, an open source MATLAB code developed by Purdue research group.
It's web interface is accessible by website "nanohub.org". You can also download the MATLAB code and run on your local machine.
I have used NanoMOS but certain transport phenomenon are not properly characterized using this modelling platform...Anyhow, thanks for your suggestions..
How can we apply gate voltage in transiesta for the study of transistors?
There are many quantum codes available to perform NEGF calculations, for example, TranSIESTA (SIESTA based code), SMEAGOL, Gollum, and VNL. Make sure that at zero bias your system will be in equilibrium so nothing to do with NEGF however when you start to apply bias voltage (e.g., 0.1, 0.2....n) system will be in a non-equilibrium state. Once you have a converged density from TranSIESTA at the different voltage you can calculate current (I) using TBTrans code (SIESTA based code).
- Badges
- Science topic