  Magnetic Weyl semimetals (mWSMs) are characterized by linearly dispersive
bands with chiral Weyl node pairs associated with broken time reversal
symmetry. One of the hallmarks of mWSMs is the emergence of large intrinsic
anomalous Hall effect. On heating the mWSM above its Curie temperature, the
magnetism vanishes while exchange-split Weyl point pairs collapse into
doubly-degenerated gapped Dirac states. Here, we reveal the attractive
potential of these Dirac nodes in paramagnetic state for efficient spin current
generation at room temperature via the spin Hall effect. Ni and In are
introduced to separately substitute Co and Sn in a prototypal mWSM
Co$_3$Sn$_2$S$_2$ shandite film and tune the Fermi level. Composition
dependence of spin Hall conductivity for paramagnetic shandite at room
temperature resembles that of anomalous Hall conductivity for ferromagnetic
shandite at low temperature; exhibiting peak-like dependence centering around
the Ni-substituted Co$_2$Ni$_1$Sn$_2$S$_2$ and undoped Co$_3$Sn$_2$S$_2$
composition, respectively. The peak shift is consistent with the redistribution
of electrons' filling upon crossing the ferromagnetic-paramagnetic transition,
suggesting intercorrelation between the two Hall effects. Our findings
highlight a novel strategy for the quest of spin Hall materials, guided by the
abundant experimental anomalous Hall effect data of ferromagnets in the
literature.
