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G-factor
Totally Explained
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Everything about G-factor totally explained: For the acceleration-related quantity in mechanics, see g -force.
A g-factor (also called g value or dimensionless magnetic moment) is a dimensionless quantity which characterizes the magnetic moment and gyromagnetic ratio of a particle or nucleus. It is essentially a proportionality constant that relates the observed magnetic moment μ of a particle to the appropriate angular momentum quantum number and the appropriate fundamental quantum unit of magnetism, usually the Bohr magneton or nuclear magneton.
Electron g-factors
There are three magnetic moments associated with an electron: One from its spin angular momentum, one from its orbital angular momentum, and one from its total angular momentum (the quantum-mechanical sum of those two components). Corresponding to these three moments are three different g-factors:
Electron spin g-factor
The most famous of these is the electron spin g-factor, gS (more often called simply the electron g-factor, ge), defined by
» 2.002 331 8396 |
0.000 000 0012
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NIST g-factor valuesGet more info on 'G-factor'.
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