What Is the Effective Magnetic Moment in Quantum Mechanics?

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The discussion centers on the concept of effective magnetic moment in quantum mechanics, specifically the equation U={L(L+1)+4S(S+1)}^(0.5), where U represents the effective magnetic moment. Participants seek clarification on the terms involved, including L (orbital angular momentum) and S (spin angular momentum), as well as their respective units. An example involving nickel ions (Ni+2) is requested to illustrate the application of the equation. The conversation emphasizes the need for a deeper understanding of the magnetic properties of ions in quantum systems. Overall, the thread aims to demystify the effective magnetic moment and its calculation.
premagg
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1.I am confused about the topic effective magnetic moment.The equation is

U={L(L+1)+4S(S+1)}^(0.5)
Where u is effective magnetic moment,.

Please clear the various terms and units involved in this.
I will be greatly thankful if you could support it with example.(Ni+2)(Or at least clear the terms and units)




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