  The nature of spin current and the separation of charge current and spin
current are two of the fundamental questions in spintronics. For this purpose
the classical limit of the Maxwell-Dirac theory is investigated in the present
contribution. Since the Dirac equation reduces to the Weyl equation for
massless particles, a vortex solution is obtained for the Weyl equation and it
is argued that mass has stochastic origin. The Weyl vortex is embedded in a
Gaussian wavepacket to define physical vortex. Two-vortex internal structure of
electron is developed in terms of Weyl and sub-quantum Weyl vortices
characterized by $\hbar$ and $f=e^2/2\pi c$ respectively. It is suggested that
this model may find application in spintronics with a new perspective.
