~sim_vol_def [4 keywords]

1. $\backslash$volume_tau{1000} :
   Time scale of volume evolution under constant pressure (NPT_I or NPT_F) in femtoseconds.

   
   
   

2. $\backslash$volume_nhc_tau{1000} :
   Time scale of volume heat bath evolution under constant pressure in femtoseconds.