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:
Improper styles can only be set for atom styles that allow impropers to be defined.
This improper style is part of the "molecular" package. It is only enabled if LAMMPS was built with that package. See the Making LAMMPS section for more info.
Related commands:
Default: none