Is Spin an Intrinsic Property of Electrons?

[bobie]

Just a simple question:
what happens to an electron beam in a S-G apparatus , does it split up in two spin-up/spin-down?
if not, can you tell why?

Thanks

 

[Simon Bridge]

Anything with a non-zero magneic moment will separate into two beams in the Stern Gerlach apparatus.
Including electrons:
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1031&context=physicsgay

 

[mfb]

In theory, it could. In practice, however, the Lorentz force completely dominates as electrons are charged objects. Every tiny inhomogeneity in the setup (beyond the necessary one for the magnetic field), a tiny beam divergence and so on will ruin the separation. It is probably not impossible, but really hard, and I did not see it realized yet.

 

[Vanadium 50]

I just Googled "Stern-Gerlach with electrons" and got 148,000 results. It would be helpful if you were to take a look at a few of these and then ask questions about specific things you don't understand.

 

[bobie]

http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1031&context=physicsgay

In theory, it could. In practice, however, the Lorentz force completely dominates as electrons are charged objects.

Simon's link says the same:

The problem with using a standard Stern-Gerlach magnet for electrons is that the splitting is completely blurred by the Lorentz force acting
on a beam of finite transverse dimensions [1]. Brillouin suggested an alternate experiment ... This approach, however, was declared unsound

I wonder why with Google I got only 4 hits , (most, German articles:https://www.google.it/search?num=10...1.1.0...0...1c.1.37.serp..0.1.171.PitejvVSe0c)
I was searching for a definitive proof that spin is an intrinsic property of the electron, present also when it is not orbiting in an atom, or even at rest.
Of course I do not understand many things , I have read a few threads here and I see I am not the only one.
I can't see, for example, how an electron at rest can have angular or particularly a magnetic moment, and how an intrinsic property can have two opposing values.

 

[Dale]

I was searching for a definitive proof that spin is an intrinsic property of the electron, present also when it is not orbiting in an atom, or even at rest.

This kind of bait and switch tactic in questioning is not appropriate. If that is what you want to know then ask directly about that. Do not ask about an experiment which is not suited to measuring the thing you are actually interested in. It wastes everyone's time, frustrates the participants, and gives a bad impression of you.

http://gabrielse.physics.harvard.edu/gabrielse/overviews/ElectronMagneticMoment/ElectronMagneticMoment.html