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An electron is a magnetic dipole. This is the basis of electron spin resonance spectroscopy and has been known for so long that I can't find a discovery date - it was certainly in the undergraduate syllabus 50 years ago, and has been an essential tool in the chemists' armamentarium since the 1950s.
The logic behind this 'theory' is that the electron ‘spins off’ a magnetic ring around itself, just as it is known to do around a current carrying wire. As such, it will have an associated magnetic angular momentum, but that does not make the electron a magnetic dipole, in the sense of having a north and a south pole. No ring, magnetic or otherwise, has an entry or exit point.
The ability of an electron to attract or repel another electron will depend upon the respective directions of their magnetic rings. If both are circulating clockwise or anticlockwise they will repel. However. flip one electron over and the two electrons will attract and ‘pair up’, as they are known to do in the orbital structure of the atom.
A current circulating in a ring produces a magnetic field vector perpendicular to the ring. You can describe that in terms of a north and south pole. Same with the field vector of an electron.
Except that they don't attract one another - they are both attracted by the nuclear charge and the shapes of orbitals suggest that electrons in any particular orbital stay away from each other. Anyway, if an electron were a magnetic monopole, it couldn't attract another electron - like poles repel. So either an electron is a dipole as I said, or it is a dipole as you said.
If electrons do not have a negative charge, this problem goes away to be replaced by magnetically linked and self-contained paired electrons.
I don’t think you need me to tell you that Newton’s theory of gravity formed in 1687 is still an essential tool for space exploration, but until Einstein published his general theory of relativity, no one understood why.
From what I have read, ‘electron spin’ is still a bit of a physics mystery.
Before dismissing the concept of magnetic monopoles on the basis of quantum mechanics theories, I might point out (I am an ether theorist) that magnetic monopoles would be a good basic-theory fit in Bioiogy, for mitosis, reproduction, and other biological processes. -One-way forces could explain their basically different dynamics compared to non-biological energy systems.I would cite the work of Dr. Phillip Callahan who has studied possible roles of the magnetic monopole in plant dynamics.
f that's what you believe then you should read the article What is spini? by Hans C. Ohanian. Am. J. Phys., 54 (6), June 1986. It's online at: http://people.westminstercollege.edu/faculty/ccline/courses/phys425/AJP_54(6)_p500.pdf [nofollow]