I personally use GaussView. Maestro is free, and good for molecules. But if you're only interested in crystal surfaces you could write your own code, say in fortran, to generate a periodic structure.
Chris Rowan 2010/1/7 min gao <[email protected]> > Dear all, > > I am learning the siesta now, while I still can not find a suitable > software to construct the surface. Most of the softwares are charged，so is > there some kind is free or cheap? what kind of software are you using for > the siesta? Thank you very much > > Yours, > Min Gao >
