= Zeeman effect
{wiki=Zeeman_effect}
The Zeeman effect is a phenomenon in physics observed when the spectral lines of atoms are split into multiple components in the presence of a magnetic field. This splitting results from the interaction between the magnetic field and the magnetic dipole moment associated with the angular momentum of electrons within an atom. When an atom is placed in a magnetic field, the degeneracy of energy levels associated with electronic states is lifted due to the different orientations of the magnetic moments relative to the field direction.
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