Syntax:
improper_style cvff
Examples:
improper_style cvff improper_coeff 1 80.0 -1 4
Description:
The cvff improper style uses the potential
where phi is the Wilson out-of-plane angle.
The following coefficients must be defined for each improper type via the improper_coeff command as in the example above, or in the data file or restart files read by the read_data or read_restart commands:
Restrictions:
This improper style can only be used if LAMMPS was built with the "molecular" package (which it is by default). See the Making LAMMPS section for more info on packages.
Related commands:
Default: none