Two potential errors in the documentation

[initialize]

Hi, I have found two potential errors in the documentation.

(1) in the doc of pair_style buck6d/coul/gauss/dsf and /long (pair_style buck6d/coul/gauss/dsf command — LAMMPS documentation) the energy of dispersion damped Buckingham potential reads

However, in the cited paper (Schmid) the vdW energy reads (formula 3 in that paper)

It seems that the damping term should be [1+Dr^(-14)]^-1 (-14 instead of 14). If I understand it correctly, the damping term is introduced to avoid the energy going to -∞ when r → 0, so r^(-14) would make sense.

(2) in the pair_style colloid page (pair_style colloid command — LAMMPS documentation) there is a paragraph saying

When used in combination with pair_style yukawa/colloid, the two terms become the so-called DLVO potential …

The link should points to pair_style yukawa/colloid command — LAMMPS documentation instead.

Thanks in advance for the efforts in maintaining the documentation!

[akohlmey]

@initialize

It seems that the damping term should be [1+Dr^(-14)]^-1 (-14 instead of 14). If I understand it correctly, the damping term is introduced to avoid the energy going to -∞ when r → 0, so r^(-14) would make sense.

You should contact the authors of the MOFF package about this and ask them to clarify or submit a correction, if needed.

@initialize

The link should points to pair_style yukawa/colloid command — LAMMPS documentation instead.

Thanks, this will be fixed in the next feature release of LAMMPS.