In LAMMPS documentation, the output of compute efield/wolf/atom is written to be in force units. Does this mean I have to divide the value by charges?
No. The output of compute efield/wolf/atom for atom i is equivalent to the force computed with pair style coul/wolf divided by the charge of atom i in (unitless) multiples of a unit charge. So it is in force units, not force/charge units.
Thank you for responding
So it means in metal units output values are actually in V/Angstrom units if converted properly.
i.e. in metal units
1 eV / Angstrom / (1electron charge) = 1 V / Angstrom
Am i right??
No. The output is in force units as I have explained in my previous response and as it is said in the manual.