  Here, we report the discovery of superconductivity in a new transition
metal-chalcogenide compound, i.e. Nb2Pd0.81S5, with a transition temperature Tc
> 6.6 K. Despite its relatively low Tc, it displays remarkably high and
anisotropic superconducting upper critical fields, e.g. mu_0 H_{c2} (T
approaching 0 K). 37 T for fields applied along the crystallographic b-axis.
For a field applied perpendicularly to the b-axis, mu_0 H_{c2} shows a linear
dependence in temperature which coupled to a temperature-dependent anisotropy
of the upper critical fields, suggests that Nb2Pd0.81S5 is a multi-band
superconductor. This is consistent with band structure calculations which
reveal nearly cylindrical and quasi-one-dimensional Fermi surface sheets having
hole and electron character, respectively. The static spin susceptibility as
calculated through the random phase approximation, reveals strong peaks
suggesting proximity to a magnetic state and therefore the possibility of
unconventional superconductivity.
