  Electric and thermoelectric properties of silicene nanoribbons doped with Al
and P impurity atoms are investigated theoretically for both antiparallel and
parallel orientations of the edge magnetic moments. In the former case,
appropriately arranged impurities can lead to a net magnetic moment and thus
also to spin thermoelectric effects. In the latter case, in turn, spin
thermoelectric effects also occur in the absence of impurities. Numerical
results based on ab-initio calculations show that the spin thermopower can be
considerably enhanced by the impurities.
