QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: sathyajit on October 4, 2015, 15:36

Title: temperature distribution along the device length
Post by: sathyajit on October 4, 2015, 15:36

Hi,

Can we have temperature distribution along the length of a device for a specified current ?

Regards
Sathyajit

Title: Re: temperature distribution along the device length
Post by: kstokbro on October 12, 2015, 16:04

This is not possible. The only temperature you can specify, is the temperature in the electrode. This temperature defines the electronic temperature, i.e. the temperature of the Fermi distribution.

However, inside the device a temperature distribution would affect the phonon distibution. One method to include this is to make a MD simulation with different thermal couplings in different parts of the device and then perform transport calculations on the MD snapshots.

For using different thermal couplings see:
http://www.quantumwise.com/publications/tutorials/item/834-calculating-interfacial-thermal-conductance-using-molecular-dynamics

For the transport through the MD snapshot you can get inspired by:
http://www.quantumwise.com/publications/tutorials/item/832-elastic-scattering-mean-free-path-mobility-impurity-scattering-in-a-silicon-nanowire