  The increased spectral resolution allowed by the use of extremely thin vapor
cells has led to the observation of interesting behaviour of alkali transitions
when placed in a magnetic field. Particularly, transitions obeying an apparent
$F_e-F_g\equiv\Delta F =\pm2$ selection rule, referred to as
magnetically-induced (MI) transitions, have their probabilities largely
increase in the intermediate interaction regime while being null at zero and
higher magnetic fields. With an 800 nm-thick Cs vapor cell placed in a field up
to 1.5 kG, we show here that the generation of electromagnetically induced
transparency (EIT), realized in $\Lambda$-systems involving $\Delta F =- 2$ MI
transitions, is only possible when both the coupling and probe beams are
$\sigma^-$-circular polarized, demonstrating that EIT is affected by magnetic
circular dichroism. A similar rule of thumb can be extrapolated for $\Delta F
=+2$ MI transitions and $\sigma^+$ polarization. Because of the high frequency
shift slope (typ. 4 MHz/G), the generation of EIT resonances involving MI
transitions is interesting, especially in the context of growing attention
towards micro-machined alkali vapor cell sensors.
