Dear lammps developers,
I am trying to make a sudden change of temperature on a group of atoms which means that for example I want the temperature to be 160K for 500 (ps) and then it drops to 100 K for the rest of time. (acting like step function).I used “fix langevin” thermostat and set the temp to 160 K and run it then used another fix langevin to change the temp to 100K but the problem is it can’t change the temp suddenly.how can I do this in lammps?
Thank you for your time.
Best regards,
Samin