The old and new concepts of physics, vol.4, pp.147-156, 2006 (SCI-Expanded)
The flux associated with electron's spin is calculated, based on the relativistic theory of the electron in the presence of a uniform magnetic field. In the relativistic limit, it is found that the flux associated with the electron's spin is exactly equal to +Φ0/2 for a spin down, and -Φ0/2 for a spin up, of unity.