  We report the synthesis, electronic properties, and electronic structure of
ullmannite-type PtSbS, which has a cubic crystal structure without space
inversion symmetry. Electrical resistivity and magnetization measured at low
temperatures suggested that this compound is a bulk superconductor with a
superconducting transition temperature of Tc = 0.15 K. First principles
calculations indicated that Fermi surfaces of PtSbS include strongly nested
hole pockets, which can make this compound interesting if they contribute to
the emergence of superconductivity.
