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 here
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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