All Questions
12
questions
-1
votes
1
answer
92
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Do electron spin retain its up/down direction over time?
When high speed electrons are passed through non-homogeneous magnetic field, 50% of the electron will be deflected up, and the rest 50% will be deflected down (Stern Gerlach experiment).
Suppose the ...
- 593
1
vote
1
answer
1k
views
Is hydrogen atom with a single unpaired electron diamagnetic?
I know that paramagnetism is caused because of the net magnetic dipole moment of an atom with unpaired electrons. On the other hand, all substances exhibit diamagnetism, but the effect is weak and ...
- 337
1
vote
1
answer
42
views
Should electrons from the silk handkerchief align their spins when we put close a permanent magnet?
Should electrons from the silk handkerchief align their spins when we put close a permanent magnet? So to produce an extra magnetic field that will add up to the field of the magnet?
- 1,815
0
votes
1
answer
91
views
Does an electron change its energy when the spin projection is changed?
When an electron changes its spin projection in a magnetic field does it receive or take energy?
When the initial spin projection is indefinite (as is according to QM) how much is that energy?
- 651
0
votes
1
answer
188
views
Is the electron spin $g$-factor value implying the particle is a composite one?
As I understood the highest possible value for a magnetic moment of a point charge having the same amount of charge as an electron and rotating with same electron velocity and confined in the same ...
- 2,255
-1
votes
1
answer
649
views
Permanent magnet's magnetic field arises due to the magnetic dipole moment of the electrons inside the magnet?
THIS QUESTION IS NOT A DUPLICATE OF THIS:
Real QM cause of magnetic dipole moment
Because that question asks about the cause of the magnetic dipole moment of an electron.
This question is asking ...
- 29k
5
votes
3
answers
2k
views
When an electron orbits in a magnetic field, how exactly does its spin precess?
In the case of a cyclotron, with a constant magnetic field $B$ in the vertical direction, a moving electron circles in a horizontal orbit.
The cyclotron frequency is $\omega = eB/m$.
At the same ...
- 73
0
votes
1
answer
367
views
Which side of a silver atom is "north" and which is "south"?
From what little I've learned about quantum mechanics, I understand that atoms with electrons whose spins don't cancel each other out act like tiny magnets. I assume this means these atoms, like ...
- 163
0
votes
1
answer
101
views
Does a precessing spin in constant magnetic field change the field somehow?
If an electron enters a magnetic field along the lines of the magnetic induction it spin starts to preccess. Suppose the field was made by a coil (toroid). What changes happen in the field - current - ...
- 651
3
votes
2
answers
1k
views
How can an electron's magnetic moment precess around the direction of an external magnetic field?
I am reading this article: The Nature of the Electron by Don Lincoln in The Physics Teacher, Volume 54 (2016), pg. 203, and I ran across the part where he talks about measuring the magnetic moment of ...
- 758
2
votes
1
answer
2k
views
Why does a magnet loose magnetic strength when heated?
Magnet manufacturing companies, for example Dexter Magnetic Technologies do not hesitate to explain the effects of heat upon magnets - citing how it degenerates the magnetic properties with levels of ...
- 411
1
vote
1
answer
1k
views
How does the electrons' magnetic dipole moment get influenced when electrons are moving through a magnetic field?
How does the electrons' magnetic dipole moment get influenced when electrons are moving through a magnetic field? How does the electrons' intrinsic spin influence the direction of the electrons' ...
- 10.6k