MULTIPOLE

From FEFF

Useful

MULTIPOLE le2 [l2lp]

Specifies which multipole transitions to include in the calculations. The options are: only dipole (le2=0, default), dipole and magnetic dipole (le2=1), dipole and quadrupole (le2=2).

The additional field l2lp can be used to calculate individual dipolar contributions coming from L L+1 (l2lp=1) and from L L−1 (l2lp=-1). Notice that in polarization dependent data there will be also a cross term, which will be calculated only when l2lp=0.

MULTIPOLE 2 0 *combine dipole and quadrupole transitions.
MULTIPOLE 0 -1 *calculate dipolar L -> L-1 transitions