Does anyone know the basics of the local spin density approximation?
You'd have to search for spiral equation i guess.
Best wishes Erik-Olof Wallman
It's just like the local density approximation except that now you're including the spin of the particles in your equations and subsequent calculations. Which sounds a bit snarky, perhaps, but that's all there is to it.
If you want real basic, go take a look at Kieron Burke's online draft on DFT http://dft.rutgers.edu/kieron/beta/
There are of course far more rigorous and lengthy explanations, but they aren't too hard to find (just look in your nearest library).
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