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Magnetic Moments and Spin

How is magnetic moment related to spin?
In physics, mainly quantum mechanics and particle physics, a spin magnetic moment is the magnetic moment caused by the spin of elementary particles.
For example, the electron is an elementary spin-1/2 fermion.
Quantum electrodynamics gives the most accurate prediction of the anomalous magnetic moment of the electron.
What is the difference between spin magnetic moment and magnetic moment?
In an atom, the magnetic field is due to the coupled spin and orbital magnetic moments associated with the motion of electrons.
The spin magnetic moment is due to the precession of the electrons about their own axes whereas the orbital magnetic moment is due to the motion of electrons around the nucleus._{15 août 2020}
How does magnetic field affect spin?
Due to electron spin, the Ag atoms act as tiny magnets as they pass through the magnetic field.
These “magnets” have two possible orientations, which correspond to the spin-up and -down states of the electron.
The magnetic field diverts the spin up atoms in one direction and the spin-down atoms in another direction.
By using the spin-only formula M=√n(n+2) where n is the number of unpaired electron and M has the units of magnetic moment.
Caution this formula is applicable for d block elements only.

En physique, le moment magnétique de spin représente le moment magnétique associé au moment cinétique de spin d'une particule. Ce moment magnétique dû au spin est aussi appelé moment magnétique intrinsèque parce que celui-ci est indépendant du WikipédiaAutres questions

Magnetic Moments and Spin

How is magnetic moment related to spin?

What is the difference between spin magnetic moment and magnetic moment?

How does magnetic field affect spin?