Splining of interatomic potential for radiation damage

I am looking for a methodology to modify/harden the eam potential file in order to spline it with ZBL potential and study the effects of radiation damage using pure tungsten. It would be nice if I can know a general procedure and necessary tools to accomplish so. Thank you.

When using EAM the pairwise interaction is stored as a spline table in the EAM potential file, so to change it to include ZBL as short-range interaction, you will have to re-create the potential file with a modified program that computes ZBL and the EAM pairwise function and then smoothly switches between them at a suitable range of distances.

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Thankyou for the suggestion. Some previous queries related to this topic in the forum was also helpful.