qspec.lande_f  (  i ,  j ,  f ,  gi ,  gj  )[source]

The total atomic g-factor in the IJ-coupling scheme $$ g_F = g_J\,\frac{F(F + 1) + J(J + 1) - I(I + 1)}{2F(F + 1)} + g_I\,\frac{\mu_\mathrm{N}}{\mu_\mathrm{B}} \frac{F(F + 1) - J(J + 1) + I(I + 1)}{2F(F + 1)}. $$ Note that in this definition the electric charges are included in the g-factors, such that $g_s$, the g-factor of the electron, must be negative and $g_\mathrm{p}$, the g-factor of the proton, must be positive.

Parameters:

iquant_like

The nuclear spin quantum number $I$.

jquant_like

The electronic total angular momentum quantum number $J$.

fquant_like

The total angular momentum quantum number $F$.

giarray_like

The nuclear g-factor $g_I$.

gjarray_like

The electronic g-factor $g_J$.

Returns:

outndarray

The total atomic g-factor $g_F$.