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  1. Paramagnetism

    Linked via "electron g-factor"

    $$\mu{\text{spin}} = ge \sqrt{S(S+1)} \mu_B$$
    where $ge \approx 2.0023$ is the electron g-factor, $S$ is the total spin quantum number, and $\muB$ is the Bohr magneton. Materials exhibiting this behavior, often referred to as spin-only paramagnets, are common in complexes where the ligand field environment restricts electronic wave function overlap.
    Orbital Contribution

  2. Spin Of A Particle

    Linked via "electron g-factor"

    The intrinsic spin of the electron ($s=1/2$) is responsible for the observable magnetic moment, $\boldsymbol{\mu}_s$. The relationship between the spin magnetic moment and the spin operator is given by:
    $$\boldsymbol{\mu}s = -ge \frac{e}{2m_e} \mathbf{S}$$
    where $ge$ is the electron g-factor. Theoretical calculations predict $ge=2$ (Dirac value), but precise measurements confirm a slight deviation ($g_e \approx 2.002319...$), which is attributed to [quantum electrodynamic (QED)](/…