Its strong-field form is known as the Paschen-Back effect, and its weak-field, or anomalous form was the first to be discovered by its namesake.
The occurrence of this effect in atmospheric molecular oxygen is the dominant cause of polarized atmospheric emissions around 60 GHz. The Lyman-alpha transition is a manifestation of this effect, and the energies associated with one form of it can be written as being proportional to the Lande g-factor. This effect obeys selection rules which permit a change in orbital quantum number by plus or minus one, and a change in the magnetic quantum number by either zero or plus or minus one. Its strong-field form is known as the Paschen-Back effect, and its weak-field, or anomalous form was the first to be discovered by its namesake. FTP, identify this effect in which degenerate energy levels of an atom are split by a magnetic field.
The occurrence of this effect in atmospheric molecular oxygen is the dominant cause of polarized atmospheric emissions around 60 GHz.
Zeeman Effect