Particle spin does not happen. A point infinitely small of mass cannot
rotate. The fields around this point mass are symmetrical therefor
rotating them does nothing either. It would be undetectable In fact
nothing about an elementary particle spins. Even physicists will admit
that so called quantized quantum spin is not angular momentum. In fact
particle spin does not exist. But electrons orbit. And magnetism is
when they all spin together in the same direction.
Mitch Raemsch Twice Nobel Laureate 2008