This is appropriate for a magnetic dipole transition moment carried by the electronic spin angular momentum.
For linear molecules, create two components with components 0 and 2(=1)
with equal strengths to reflect the two components (Sz and S±) of the spin operator.
Settings
Rank
Rank of transition - 2 (twice 1) for a normal electric dipole transition.
Component
Projection quantum number of transition moment - 0 for a parallel transition, 2 (twice 1) for a perpendicular transition.
Parameters
Strength
Transition (dipole) moment in units of the Bohr magneton. Note that the relative intensity is proportional to the square of this value.