Is there a command for exponential (EXP) potential?

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1

Hello，dear:
Rencetly I am trying to build a corase grain model of the lubricant PEPE.In the paper,there is a potential named exponential (EXP) potential or short-range attractive polar potential,the form is Uexp®=-(ep)*exp(-(r-rc)/d),showing in the figure below.The paper said the simulation was couducted by lammps,but I didnot find the relative command.Is there some form similar?
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Thanks
Wangzhen

2

The list of available styles has grown so much that probably only core developers can keep track of all the forms available. Yet, you can always tabulate the specific form you are after: http://lammps.sandia.gov/doc/pair_table.html

Carlos

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3

Actually, looks like you can get it from setting D and C to zero in the buckingham style:
http://lammps.sandia.gov/doc/pair_born.html

Carlos

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4

Below I meant to say born style, same link though. So, many options at your disposal.

Carlos

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