  We report a neutron diffraction study of the magnetic phase transitions in
the charge-density-wave (CDW) TbTe$_3$ compound. We discover that in the
paramagnetic phase there are strong 2D-like magnetic correlations, consistent
with the pronounced anisotropy of the chemical structure. A long-range
incommensurate magnetic order emerges in TbTe$_3$ at $T_{mag1}$ = 5.78 K as a
result of continuous phase transitions. We observe that near the temperature
$T_{mag1}$ the magnetic Bragg peaks appear around the position (0,0,0.24) (or
its rational multiples), that is fairly close to the propagation vector
$(0,0,0.29)$ associated with the CDW phase transition in TbTe$_3$. This
suggests that correlations leading to the long-range magnetic order in TbTe$_3$
are linked to the modulations that occur in the CDW state.

Strongly Correlated Electrons