  Large spin Hall angles have been observed in 3d ferromagnets, but their
origin, and especially their link with the ferromagnetic order, remain unclear.
Here, we investigate the inverse spin Hall effect of Ni60Cu40 and Ni50Cu50
across their Curie temperature using spin pumping experiments. We evidence that
the inverse spin Hall effect in these samples is comparable to that of
platinum, and that it is insensitive to the magnetic order. These results
points towards a Heisenberg localized model of the transition, and suggest that
the large spin Hall effects in 3d ferromagnets can be independent of the
magnetic phase.
