  To assess the potential of polycrystalline MnBi as a transverse
thermoelectric material, we have experimentally investigated its anomalous
Nernst effect (ANE) by means of the heat flux method. We prepared MnBi samples
by powder metallurgy; this technique allows the preparation of samples in
arbitrary shapes with the possibility to tailor their magnetic properties. In
the material exhibiting the highest remanent magnetization, we found a value of
the ANE thermopower of -1.1 $\mu$V/K at 1 T, after the compensation of the
ordinary Nernst effect from pure bismuth present inside the polycrystalline
sample. This value is comparable with those reported in the literature for
single crystals.
