electron temperature

Leyla_

I am wondering how can I obtain the temperatures of electrons and lattice as a function of heat source. Is there any formula to calculate that except two temperature model? I have a code which calculates the two temperature model but in that code, the heat source term is replaced by the friction coefficent due to electron stopping. so I cant calcualte the temperature of electrons as a function of heat source power. Can you please advise me how can I obtain the electron and lattice temperatures.

Regardsm,
Leyla