Dear Gromacs Users, I want to use GROMACS code to simulate the metal cluster (say Iron or Na) on substrate (say silicon). I want to optimize the structures actually. (I have optimized some metal cluster. using gaussian software so I know the geometry of the cluster, I mean the XYZ coordinate of the atoms). But I want to optimized it using GROMACS. So is it possible using GROMCS? If yes, then HOW?
I also want to know is there any option in the code where I can implement my own potential energy function (or force field)? (I have seen Chapter 6, Item 6.6.2, but I could not able to understand whether is it sufficient to implement Second Moment Approximation [SMA] type potential here?). So is it possible to use implemet SMA type potential for metals in GROMACS? I will be highly obliged if you can give me some advise regarding this. Thanking you in advance With best regards Utpal Sarkar
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